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Call `OpenSSL_add_all_algorithms()` on older openssl versions.
[rsync.git] / options.c
blobd38bbe8db344fceb3f068b9f8b35067ec74d8624
1 /*
2 * Command-line (and received via daemon-socket) option parsing.
3 *
4 * Copyright (C) 1998-2001 Andrew Tridgell <tridge@samba.org>
5 * Copyright (C) 2000, 2001, 2002 Martin Pool <mbp@samba.org>
6 * Copyright (C) 2002-2022 Wayne Davison
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, visit the http://fsf.org website.
20 */
21
22 #include "rsync.h"
23 #include "itypes.h"
24 #include "ifuncs.h"
25 #include <popt.h>
26
27 extern int module_id;
28 extern int local_server;
29 extern int sanitize_paths;
30 extern int trust_sender_args;
31 extern int trust_sender_filter;
32 extern unsigned int module_dirlen;
33 extern filter_rule_list filter_list;
34 extern filter_rule_list daemon_filter_list;
35
36 int make_backups = 0;
37
38 /**
39 * If 1, send the whole file as literal data rather than trying to
40 * create an incremental diff.
41 *
42 * If -1, then look at whether we're local or remote and go by that.
43 *
44 * @sa disable_deltas_p()
45 **/
46 int whole_file = -1;
47
48 int append_mode = 0;
49 int keep_dirlinks = 0;
50 int copy_dirlinks = 0;
51 int copy_links = 0;
52 int copy_devices = 0;
53 int write_devices = 0;
54 int preserve_links = 0;
55 int preserve_hard_links = 0;
56 int preserve_acls = 0;
57 int preserve_xattrs = 0;
58 int preserve_perms = 0;
59 int preserve_executability = 0;
60 int preserve_devices = 0;
61 int preserve_specials = 0;
62 int preserve_uid = 0;
63 int preserve_gid = 0;
64 int preserve_mtimes = 0;
65 int preserve_atimes = 0;
66 int preserve_crtimes = 0;
67 int omit_dir_times = 0;
68 int omit_link_times = 0;
69 int trust_sender = 0;
70 int update_only = 0;
71 int open_noatime = 0;
72 int cvs_exclude = 0;
73 int dry_run = 0;
74 int do_xfers = 1;
75 int do_fsync = 0;
76 int ignore_times = 0;
77 int delete_mode = 0;
78 int delete_during = 0;
79 int delete_before = 0;
80 int delete_after = 0;
81 int delete_excluded = 0;
82 int remove_source_files = 0;
83 int one_file_system = 0;
84 int protocol_version = PROTOCOL_VERSION;
85 int sparse_files = 0;
86 int preallocate_files = 0;
87 int do_compression = 0;
88 int do_compression_level = CLVL_NOT_SPECIFIED;
89 int am_root = 0; /* 0 = normal, 1 = root, 2 = --super, -1 = --fake-super */
90 int am_server = 0;
91 int am_sender = 0;
92 int am_starting_up = 1;
93 int relative_paths = -1;
94 int implied_dirs = 1;
95 int missing_args = 0; /* 0 = FERROR_XFER, 1 = ignore, 2 = delete */
96 int numeric_ids = 0;
97 int msgs2stderr = 2; /* Default: send errors to stderr for local & remote-shell transfers */
98 int saw_stderr_opt = 0;
99 int allow_8bit_chars = 0;
100 int force_delete = 0;
101 int io_timeout = 0;
102 int prune_empty_dirs = 0;
103 int use_qsort = 0;
104 char *files_from = NULL;
105 int filesfrom_fd = -1;
106 char *filesfrom_host = NULL;
107 int eol_nulls = 0;
108 int protect_args = -1;
109 int old_style_args = -1;
110 int human_readable = 1;
111 int recurse = 0;
112 int mkpath_dest_arg = 0;
113 int allow_inc_recurse = 1;
114 int xfer_dirs = -1;
115 int am_daemon = 0;
116 int connect_timeout = 0;
117 int keep_partial = 0;
118 int safe_symlinks = 0;
119 int copy_unsafe_links = 0;
120 int munge_symlinks = 0;
121 int size_only = 0;
122 int daemon_bwlimit = 0;
123 int bwlimit = 0;
124 int fuzzy_basis = 0;
125 size_t bwlimit_writemax = 0;
126 int ignore_existing = 0;
127 int ignore_non_existing = 0;
128 int need_messages_from_generator = 0;
129 int max_delete = INT_MIN;
130 OFF_T max_size = -1;
131 OFF_T min_size = -1;
132 int ignore_errors = 0;
133 int modify_window = 0;
134 int blocking_io = -1;
135 int checksum_seed = 0;
136 int inplace = 0;
137 int delay_updates = 0;
138 int32 block_size = 0;
139 time_t stop_at_utime = 0;
140 char *skip_compress = NULL;
141 char *copy_as = NULL;
142 item_list dparam_list = EMPTY_ITEM_LIST;
143
144 /** Network address family. **/
145 int default_af_hint
146 #ifdef INET6
147 = 0; /* Any protocol */
148 #else
149 = AF_INET; /* Must use IPv4 */
150 # ifdef AF_INET6
151 # undef AF_INET6
152 # endif
153 # define AF_INET6 AF_INET /* make -6 option a no-op */
154 #endif
155
156 /** Do not go into the background when run as --daemon. Good
157 * for debugging and required for running as a service on W32,
158 * or under Unix process-monitors. **/
159 int no_detach
160 #if defined _WIN32 || defined __WIN32__
161 = 1;
162 #else
163 = 0;
164 #endif
165
166 int write_batch = 0;
167 int read_batch = 0;
168 int backup_dir_len = 0;
169 int backup_suffix_len;
170 unsigned int backup_dir_remainder;
171
172 char *backup_suffix = NULL;
173 char *tmpdir = NULL;
174 char *partial_dir = NULL;
175 char *basis_dir[MAX_BASIS_DIRS+1];
176 char *config_file = NULL;
177 char *shell_cmd = NULL;
178 char *logfile_name = NULL;
179 char *logfile_format = NULL;
180 char *stdout_format = NULL;
181 char *password_file = NULL;
182 char *early_input_file = NULL;
183 char *rsync_path = RSYNC_PATH;
184 char *backup_dir = NULL;
185 char backup_dir_buf[MAXPATHLEN];
186 char *sockopts = NULL;
187 char *usermap = NULL;
188 char *groupmap = NULL;
189 int rsync_port = 0;
190 int alt_dest_type = 0;
191 int basis_dir_cnt = 0;
192
193 #define DEFAULT_MAX_ALLOC (1024L * 1024 * 1024)
194 size_t max_alloc = DEFAULT_MAX_ALLOC;
195 char *max_alloc_arg;
196
197 static int version_opt_cnt = 0;
198 static int remote_option_alloc = 0;
199 int remote_option_cnt = 0;
200 const char **remote_options = NULL;
201 const char *checksum_choice = NULL;
202 const char *compress_choice = NULL;
203
204 int quiet = 0;
205 int output_motd = 1;
206 int log_before_transfer = 0;
207 int stdout_format_has_i = 0;
208 int stdout_format_has_o_or_i = 0;
209 int logfile_format_has_i = 0;
210 int logfile_format_has_o_or_i = 0;
211 int always_checksum = 0;
212 int list_only = 0;
213
214 #define MAX_BATCH_NAME_LEN 256 /* Must be less than MAXPATHLEN-13 */
215 char *batch_name = NULL;
216
217 int need_unsorted_flist = 0;
218 char *iconv_opt =
219 #ifdef ICONV_OPTION
220 ICONV_OPTION;
221 #else
222 NULL;
223 #endif
224
225 struct chmod_mode_struct *chmod_modes = NULL;
226
227 static const char *debug_verbosity[] = {
228 /*0*/ NULL,
229 /*1*/ NULL,
230 /*2*/ "BIND,CMD,CONNECT,DEL,DELTASUM,DUP,FILTER,FLIST,ICONV",
231 /*3*/ "ACL,BACKUP,CONNECT2,DELTASUM2,DEL2,EXIT,FILTER2,FLIST2,FUZZY,GENR,OWN,RECV,SEND,TIME",
232 /*4*/ "CMD2,DELTASUM3,DEL3,EXIT2,FLIST3,ICONV2,OWN2,PROTO,TIME2",
233 /*5*/ "CHDIR,DELTASUM4,FLIST4,FUZZY2,HASH,HLINK",
234 };
235
236 #define MAX_VERBOSITY ((int)(sizeof debug_verbosity / sizeof debug_verbosity[0]) - 1)
237
238 static const char *info_verbosity[1+MAX_VERBOSITY] = {
239 /*0*/ "NONREG",
240 /*1*/ "COPY,DEL,FLIST,MISC,NAME,STATS,SYMSAFE",
241 /*2*/ "BACKUP,MISC2,MOUNT,NAME2,REMOVE,SKIP",
242 };
243
244 #define MAX_OUT_LEVEL 4 /* The largest N allowed for any flagN word. */
245
246 short info_levels[COUNT_INFO], debug_levels[COUNT_DEBUG];
247
248 #define DEFAULT_PRIORITY 0 /* Default/implied/--verbose set values. */
249 #define HELP_PRIORITY 1 /* The help output uses this level. */
250 #define USER_PRIORITY 2 /* User-specified via --info or --debug */
251 #define LIMIT_PRIORITY 3 /* Overriding priority when limiting values. */
252
253 #define W_CLI (1<<0) /* client side */
254 #define W_SRV (1<<1) /* server side */
255 #define W_SND (1<<2) /* sending side */
256 #define W_REC (1<<3) /* receiving side */
257
258 struct output_struct {
259 char *name; /* The name of the info/debug flag. */
260 char *help; /* The description of the info/debug flag. */
261 uchar namelen; /* The length of the name string. */
262 uchar flag; /* The flag's value, for consistency check. */
263 uchar where; /* Bits indicating where the flag is used. */
264 uchar priority; /* See *_PRIORITY defines. */
265 };
266
267 #define INFO_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, INFO_##flag, where, 0 }
268
269 static struct output_struct info_words[COUNT_INFO+1] = {
270 INFO_WORD(BACKUP, W_REC, "Mention files backed up"),
271 INFO_WORD(COPY, W_REC, "Mention files copied locally on the receiving side"),
272 INFO_WORD(DEL, W_REC, "Mention deletions on the receiving side"),
273 INFO_WORD(FLIST, W_CLI, "Mention file-list receiving/sending (levels 1-2)"),
274 INFO_WORD(MISC, W_SND|W_REC, "Mention miscellaneous information (levels 1-2)"),
275 INFO_WORD(MOUNT, W_SND|W_REC, "Mention mounts that were found or skipped"),
276 INFO_WORD(NAME, W_SND|W_REC, "Mention 1) updated file/dir names, 2) unchanged names"),
277 INFO_WORD(NONREG, W_REC, "Mention skipped non-regular files (default 1, 0 disables)"),
278 INFO_WORD(PROGRESS, W_CLI, "Mention 1) per-file progress or 2) total transfer progress"),
279 INFO_WORD(REMOVE, W_SND, "Mention files removed on the sending side"),
280 INFO_WORD(SKIP, W_REC, "Mention files skipped due to transfer overrides (levels 1-2)"),
281 INFO_WORD(STATS, W_CLI|W_SRV, "Mention statistics at end of run (levels 1-3)"),
282 INFO_WORD(SYMSAFE, W_SND|W_REC, "Mention symlinks that are unsafe"),
283 { NULL, "--info", 0, 0, 0, 0 }
284 };
285
286 #define DEBUG_WORD(flag, where, help) { #flag, help, sizeof #flag - 1, DEBUG_##flag, where, 0 }
287
288 static struct output_struct debug_words[COUNT_DEBUG+1] = {
289 DEBUG_WORD(ACL, W_SND|W_REC, "Debug extra ACL info"),
290 DEBUG_WORD(BACKUP, W_REC, "Debug backup actions (levels 1-2)"),
291 DEBUG_WORD(BIND, W_CLI, "Debug socket bind actions"),
292 DEBUG_WORD(CHDIR, W_CLI|W_SRV, "Debug when the current directory changes"),
293 DEBUG_WORD(CONNECT, W_CLI, "Debug connection events (levels 1-2)"),
294 DEBUG_WORD(CMD, W_CLI, "Debug commands+options that are issued (levels 1-2)"),
295 DEBUG_WORD(DEL, W_REC, "Debug delete actions (levels 1-3)"),
296 DEBUG_WORD(DELTASUM, W_SND|W_REC, "Debug delta-transfer checksumming (levels 1-4)"),
297 DEBUG_WORD(DUP, W_REC, "Debug weeding of duplicate names"),
298 DEBUG_WORD(EXIT, W_CLI|W_SRV, "Debug exit events (levels 1-3)"),
299 DEBUG_WORD(FILTER, W_SND|W_REC, "Debug filter actions (levels 1-3)"),
300 DEBUG_WORD(FLIST, W_SND|W_REC, "Debug file-list operations (levels 1-4)"),
301 DEBUG_WORD(FUZZY, W_REC, "Debug fuzzy scoring (levels 1-2)"),
302 DEBUG_WORD(GENR, W_REC, "Debug generator functions"),
303 DEBUG_WORD(HASH, W_SND|W_REC, "Debug hashtable code"),
304 DEBUG_WORD(HLINK, W_SND|W_REC, "Debug hard-link actions (levels 1-3)"),
305 DEBUG_WORD(ICONV, W_CLI|W_SRV, "Debug iconv character conversions (levels 1-2)"),
306 DEBUG_WORD(IO, W_CLI|W_SRV, "Debug I/O routines (levels 1-4)"),
307 DEBUG_WORD(NSTR, W_CLI|W_SRV, "Debug negotiation strings"),
308 DEBUG_WORD(OWN, W_REC, "Debug ownership changes in users & groups (levels 1-2)"),
309 DEBUG_WORD(PROTO, W_CLI|W_SRV, "Debug protocol information"),
310 DEBUG_WORD(RECV, W_REC, "Debug receiver functions"),
311 DEBUG_WORD(SEND, W_SND, "Debug sender functions"),
312 DEBUG_WORD(TIME, W_REC, "Debug setting of modified times (levels 1-2)"),
313 { NULL, "--debug", 0, 0, 0, 0 }
314 };
315
316 static int verbose = 0;
317 static int do_stats = 0;
318 static int do_progress = 0;
319 static int daemon_opt; /* sets am_daemon after option error-reporting */
320 static int F_option_cnt = 0;
321 static int modify_window_set;
322 static int itemize_changes = 0;
323 static int refused_delete, refused_archive_part, refused_compress;
324 static int refused_partial, refused_progress, refused_delete_before;
325 static int refused_delete_during;
326 static int refused_inplace, refused_no_iconv;
327 static BOOL usermap_via_chown, groupmap_via_chown;
328 static char *outbuf_mode;
329 static char *bwlimit_arg, *max_size_arg, *min_size_arg;
330 static char tmp_partialdir[] = ".~tmp~";
331
332 /** Local address to bind. As a character string because it's
333 * interpreted by the IPv6 layer: should be a numeric IP4 or IP6
334 * address, or a hostname. **/
335 char *bind_address;
336
337 static void output_item_help(struct output_struct *words);
338
339 /* This constructs a string that represents all the options set for either
340 * the --info or --debug setting, skipping any implied options (by -v, etc.).
341 * This is used both when conveying the user's options to the server, and
342 * when the help output wants to tell the user what options are implied. */
343 static char *make_output_option(struct output_struct *words, short *levels, uchar where)
344 {
345 char *str = words == info_words ? "--info=" : "--debug=";
346 int j, counts[MAX_OUT_LEVEL+1], pos, skipped = 0, len = 0, max = 0, lev = 0;
347 int word_count = words == info_words ? COUNT_INFO : COUNT_DEBUG;
348 char *buf;
349
350 memset(counts, 0, sizeof counts);
351
352 for (j = 0; words[j].name; j++) {
353 if (words[j].flag != j) {
354 rprintf(FERROR, "rsync: internal error on %s%s: %d != %d\n",
355 words == info_words ? "INFO_" : "DEBUG_",
356 words[j].name, words[j].flag, j);
357 exit_cleanup(RERR_UNSUPPORTED);
358 }
359 if (!(words[j].where & where))
360 continue;
361 if (words[j].priority == DEFAULT_PRIORITY) {
362 /* Implied items don't need to be mentioned. */
363 skipped++;
364 continue;
365 }
366 len += len ? 1 : strlen(str);
367 len += strlen(words[j].name);
368 len += levels[j] == 1 ? 0 : 1;
369
370 if (words[j].priority == HELP_PRIORITY)
371 continue; /* no abbreviating for help */
372
373 assert(levels[j] <= MAX_OUT_LEVEL);
374 if (++counts[levels[j]] > max) {
375 /* Determine which level has the most items. */
376 lev = levels[j];
377 max = counts[lev];
378 }
379 }
380
381 /* Sanity check the COUNT_* define against the length of the table. */
382 if (j != word_count) {
383 rprintf(FERROR, "rsync: internal error: %s is wrong! (%d != %d)\n",
384 words == info_words ? "COUNT_INFO" : "COUNT_DEBUG",
385 j, word_count);
386 exit_cleanup(RERR_UNSUPPORTED);
387 }
388
389 if (!len)
390 return NULL;
391
392 len++;
393 buf = new_array(char, len);
394 pos = 0;
395
396 if (skipped || max < 5)
397 lev = -1;
398 else {
399 if (lev == 0)
400 pos += snprintf(buf, len, "%sNONE", str);
401 else if (lev == 1)
402 pos += snprintf(buf, len, "%sALL", str);
403 else
404 pos += snprintf(buf, len, "%sALL%d", str, lev);
405 }
406
407 for (j = 0; words[j].name && pos < len; j++) {
408 if (words[j].priority == DEFAULT_PRIORITY || levels[j] == lev || !(words[j].where & where))
409 continue;
410 if (pos)
411 buf[pos++] = ',';
412 else
413 pos += strlcpy(buf+pos, str, len-pos);
414 if (pos < len)
415 pos += strlcpy(buf+pos, words[j].name, len-pos);
416 /* Level 1 is implied by the name alone. */
417 if (levels[j] != 1 && pos < len)
418 buf[pos++] = '0' + levels[j];
419 }
420
421 buf[pos] = '\0';
422
423 return buf;
424 }
425
426 static void parse_output_words(struct output_struct *words, short *levels, const char *str, uchar priority)
427 {
428 const char *s;
429 int j, len, lev;
430
431 for ( ; str; str = s) {
432 if ((s = strchr(str, ',')) != NULL)
433 len = s++ - str;
434 else
435 len = strlen(str);
436 if (!len)
437 continue;
438 if (!isDigit(str)) {
439 while (len && isDigit(str+len-1))
440 len--;
441 }
442 lev = isDigit(str+len) ? atoi(str+len) : 1;
443 if (lev > MAX_OUT_LEVEL)
444 lev = MAX_OUT_LEVEL;
445 if (len == 4 && strncasecmp(str, "help", 4) == 0) {
446 output_item_help(words);
447 exit_cleanup(0);
448 }
449 if (len == 4 && strncasecmp(str, "none", 4) == 0)
450 len = lev = 0;
451 else if (len == 3 && strncasecmp(str, "all", 3) == 0)
452 len = 0;
453 for (j = 0; words[j].name; j++) {
454 if (!len
455 || (len == words[j].namelen && strncasecmp(str, words[j].name, len) == 0)) {
456 if (priority >= words[j].priority) {
457 words[j].priority = priority;
458 levels[j] = lev;
459 }
460 if (len)
461 break;
462 }
463 }
464 if (len && !words[j].name && !am_server) {
465 rprintf(FERROR, "Unknown %s item: \"%.*s\"\n",
466 words[j].help, len, str);
467 exit_cleanup(RERR_SYNTAX);
468 }
469 }
470 }
471
472 /* Tell the user what all the info or debug flags mean. */
473 static void output_item_help(struct output_struct *words)
474 {
475 short *levels = words == info_words ? info_levels : debug_levels;
476 const char **verbosity = words == info_words ? info_verbosity : debug_verbosity;
477 char buf[128], *opt, *fmt = "%-10s %s\n";
478 int j;
479
480 reset_output_levels();
481
482 rprintf(FINFO, "Use OPT or OPT1 for level 1 output, OPT2 for level 2, etc.; OPT0 silences.\n");
483 rprintf(FINFO, "\n");
484 for (j = 0; words[j].name; j++)
485 rprintf(FINFO, fmt, words[j].name, words[j].help);
486 rprintf(FINFO, "\n");
487
488 snprintf(buf, sizeof buf, "Set all %s options (e.g. all%d)",
489 words[j].help, MAX_OUT_LEVEL);
490 rprintf(FINFO, fmt, "ALL", buf);
491
492 snprintf(buf, sizeof buf, "Silence all %s options (same as all0)",
493 words[j].help);
494 rprintf(FINFO, fmt, "NONE", buf);
495
496 rprintf(FINFO, fmt, "HELP", "Output this help message");
497 rprintf(FINFO, "\n");
498 rprintf(FINFO, "Options added at each level of verbosity:\n");
499
500 for (j = 0; j <= MAX_VERBOSITY; j++) {
501 parse_output_words(words, levels, verbosity[j], HELP_PRIORITY);
502 opt = make_output_option(words, levels, W_CLI|W_SRV|W_SND|W_REC);
503 if (opt) {
504 rprintf(FINFO, "%d) %s\n", j, strchr(opt, '=')+1);
505 free(opt);
506 }
507 reset_output_levels();
508 }
509 }
510
511 /* The --verbose option now sets info+debug flags. */
512 static void set_output_verbosity(int level, uchar priority)
513 {
514 int j;
515
516 if (level > MAX_VERBOSITY)
517 level = MAX_VERBOSITY;
518
519 for (j = 0; j <= level; j++) {
520 parse_output_words(info_words, info_levels, info_verbosity[j], priority);
521 parse_output_words(debug_words, debug_levels, debug_verbosity[j], priority);
522 }
523 }
524
525 /* Limit the info+debug flag levels given a verbose-option level limit. */
526 void limit_output_verbosity(int level)
527 {
528 short info_limits[COUNT_INFO], debug_limits[COUNT_DEBUG];
529 int j;
530
531 if (level > MAX_VERBOSITY)
532 return;
533
534 memset(info_limits, 0, sizeof info_limits);
535 memset(debug_limits, 0, sizeof debug_limits);
536
537 /* Compute the level limits in the above arrays. */
538 for (j = 0; j <= level; j++) {
539 parse_output_words(info_words, info_limits, info_verbosity[j], LIMIT_PRIORITY);
540 parse_output_words(debug_words, debug_limits, debug_verbosity[j], LIMIT_PRIORITY);
541 }
542
543 for (j = 0; j < COUNT_INFO; j++) {
544 if (info_levels[j] > info_limits[j])
545 info_levels[j] = info_limits[j];
546 }
547
548 for (j = 0; j < COUNT_DEBUG; j++) {
549 if (debug_levels[j] > debug_limits[j])
550 debug_levels[j] = debug_limits[j];
551 }
552 }
553
554 void reset_output_levels(void)
555 {
556 int j;
557
558 memset(info_levels, 0, sizeof info_levels);
559 memset(debug_levels, 0, sizeof debug_levels);
560
561 for (j = 0; j < COUNT_INFO; j++)
562 info_words[j].priority = DEFAULT_PRIORITY;
563
564 for (j = 0; j < COUNT_DEBUG; j++)
565 debug_words[j].priority = DEFAULT_PRIORITY;
566 }
567
568 void negate_output_levels(void)
569 {
570 int j;
571
572 for (j = 0; j < COUNT_INFO; j++)
573 info_levels[j] *= -1;
574
575 for (j = 0; j < COUNT_DEBUG; j++)
576 debug_levels[j] *= -1;
577 }
578
579 enum {OPT_SERVER = 1000, OPT_DAEMON, OPT_SENDER, OPT_EXCLUDE, OPT_EXCLUDE_FROM,
580 OPT_FILTER, OPT_COMPARE_DEST, OPT_COPY_DEST, OPT_LINK_DEST, OPT_HELP,
581 OPT_INCLUDE, OPT_INCLUDE_FROM, OPT_MODIFY_WINDOW, OPT_MIN_SIZE, OPT_CHMOD,
582 OPT_READ_BATCH, OPT_WRITE_BATCH, OPT_ONLY_WRITE_BATCH, OPT_MAX_SIZE,
583 OPT_NO_D, OPT_APPEND, OPT_NO_ICONV, OPT_INFO, OPT_DEBUG, OPT_BLOCK_SIZE,
584 OPT_USERMAP, OPT_GROUPMAP, OPT_CHOWN, OPT_BWLIMIT, OPT_STDERR,
585 OPT_OLD_COMPRESS, OPT_NEW_COMPRESS, OPT_NO_COMPRESS, OPT_OLD_ARGS,
586 OPT_STOP_AFTER, OPT_STOP_AT,
587 OPT_REFUSED_BASE = 9000};
588
589 static struct poptOption long_options[] = {
590 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
591 {"help", 0, POPT_ARG_NONE, 0, OPT_HELP, 0, 0 },
592 {"version", 'V', POPT_ARG_NONE, 0, 'V', 0, 0},
593 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
594 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
595 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
596 {"info", 0, POPT_ARG_STRING, 0, OPT_INFO, 0, 0 },
597 {"debug", 0, POPT_ARG_STRING, 0, OPT_DEBUG, 0, 0 },
598 {"stderr", 0, POPT_ARG_STRING, 0, OPT_STDERR, 0, 0 },
599 {"msgs2stderr", 0, POPT_ARG_VAL, &msgs2stderr, 1, 0, 0 },
600 {"no-msgs2stderr", 0, POPT_ARG_VAL, &msgs2stderr, 0, 0, 0 },
601 {"quiet", 'q', POPT_ARG_NONE, 0, 'q', 0, 0 },
602 {"motd", 0, POPT_ARG_VAL, &output_motd, 1, 0, 0 },
603 {"no-motd", 0, POPT_ARG_VAL, &output_motd, 0, 0, 0 },
604 {"stats", 0, POPT_ARG_NONE, &do_stats, 0, 0, 0 },
605 {"human-readable", 'h', POPT_ARG_NONE, 0, 'h', 0, 0},
606 {"no-human-readable",0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
607 {"no-h", 0, POPT_ARG_VAL, &human_readable, 0, 0, 0},
608 {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
609 {"archive", 'a', POPT_ARG_NONE, 0, 'a', 0, 0 },
610 {"recursive", 'r', POPT_ARG_VAL, &recurse, 2, 0, 0 },
611 {"no-recursive", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
612 {"no-r", 0, POPT_ARG_VAL, &recurse, 0, 0, 0 },
613 {"inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
614 {"no-inc-recursive", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
615 {"i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 1, 0, 0 },
616 {"no-i-r", 0, POPT_ARG_VAL, &allow_inc_recurse, 0, 0, 0 },
617 {"dirs", 'd', POPT_ARG_VAL, &xfer_dirs, 2, 0, 0 },
618 {"no-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
619 {"no-d", 0, POPT_ARG_VAL, &xfer_dirs, 0, 0, 0 },
620 {"old-dirs", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
621 {"old-d", 0, POPT_ARG_VAL, &xfer_dirs, 4, 0, 0 },
622 {"perms", 'p', POPT_ARG_VAL, &preserve_perms, 1, 0, 0 },
623 {"no-perms", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
624 {"no-p", 0, POPT_ARG_VAL, &preserve_perms, 0, 0, 0 },
625 {"executability", 'E', POPT_ARG_NONE, &preserve_executability, 0, 0, 0 },
626 {"acls", 'A', POPT_ARG_NONE, 0, 'A', 0, 0 },
627 {"no-acls", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
628 {"no-A", 0, POPT_ARG_VAL, &preserve_acls, 0, 0, 0 },
629 {"xattrs", 'X', POPT_ARG_NONE, 0, 'X', 0, 0 },
630 {"no-xattrs", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
631 {"no-X", 0, POPT_ARG_VAL, &preserve_xattrs, 0, 0, 0 },
632 {"times", 't', POPT_ARG_VAL, &preserve_mtimes, 1, 0, 0 },
633 {"no-times", 0, POPT_ARG_VAL, &preserve_mtimes, 0, 0, 0 },
634 {"no-t", 0, POPT_ARG_VAL, &preserve_mtimes, 0, 0, 0 },
635 {"atimes", 'U', POPT_ARG_NONE, 0, 'U', 0, 0 },
636 {"no-atimes", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 },
637 {"no-U", 0, POPT_ARG_VAL, &preserve_atimes, 0, 0, 0 },
638 {"open-noatime", 0, POPT_ARG_VAL, &open_noatime, 1, 0, 0 },
639 {"no-open-noatime", 0, POPT_ARG_VAL, &open_noatime, 0, 0, 0 },
640 {"crtimes", 'N', POPT_ARG_VAL, &preserve_crtimes, 1, 0, 0 },
641 {"no-crtimes", 0, POPT_ARG_VAL, &preserve_crtimes, 0, 0, 0 },
642 {"no-N", 0, POPT_ARG_VAL, &preserve_crtimes, 0, 0, 0 },
643 {"omit-dir-times", 'O', POPT_ARG_VAL, &omit_dir_times, 1, 0, 0 },
644 {"no-omit-dir-times",0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
645 {"no-O", 0, POPT_ARG_VAL, &omit_dir_times, 0, 0, 0 },
646 {"omit-link-times", 'J', POPT_ARG_VAL, &omit_link_times, 1, 0, 0 },
647 {"no-omit-link-times",0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
648 {"no-J", 0, POPT_ARG_VAL, &omit_link_times, 0, 0, 0 },
649 {"modify-window", '@', POPT_ARG_INT, &modify_window, OPT_MODIFY_WINDOW, 0, 0 },
650 {"super", 0, POPT_ARG_VAL, &am_root, 2, 0, 0 },
651 {"no-super", 0, POPT_ARG_VAL, &am_root, 0, 0, 0 },
652 {"fake-super", 0, POPT_ARG_VAL, &am_root, -1, 0, 0 },
653 {"owner", 'o', POPT_ARG_VAL, &preserve_uid, 1, 0, 0 },
654 {"no-owner", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
655 {"no-o", 0, POPT_ARG_VAL, &preserve_uid, 0, 0, 0 },
656 {"group", 'g', POPT_ARG_VAL, &preserve_gid, 1, 0, 0 },
657 {"no-group", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
658 {"no-g", 0, POPT_ARG_VAL, &preserve_gid, 0, 0, 0 },
659 {0, 'D', POPT_ARG_NONE, 0, 'D', 0, 0 },
660 {"no-D", 0, POPT_ARG_NONE, 0, OPT_NO_D, 0, 0 },
661 {"devices", 0, POPT_ARG_VAL, &preserve_devices, 1, 0, 0 },
662 {"no-devices", 0, POPT_ARG_VAL, &preserve_devices, 0, 0, 0 },
663 {"copy-devices", 0, POPT_ARG_NONE, &copy_devices, 0, 0, 0 },
664 {"write-devices", 0, POPT_ARG_VAL, &write_devices, 1, 0, 0 },
665 {"no-write-devices", 0, POPT_ARG_VAL, &write_devices, 0, 0, 0 },
666 {"specials", 0, POPT_ARG_VAL, &preserve_specials, 1, 0, 0 },
667 {"no-specials", 0, POPT_ARG_VAL, &preserve_specials, 0, 0, 0 },
668 {"links", 'l', POPT_ARG_VAL, &preserve_links, 1, 0, 0 },
669 {"no-links", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
670 {"no-l", 0, POPT_ARG_VAL, &preserve_links, 0, 0, 0 },
671 {"copy-links", 'L', POPT_ARG_NONE, &copy_links, 0, 0, 0 },
672 {"copy-unsafe-links",0, POPT_ARG_NONE, &copy_unsafe_links, 0, 0, 0 },
673 {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
674 {"munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 1, 0, 0 },
675 {"no-munge-links", 0, POPT_ARG_VAL, &munge_symlinks, 0, 0, 0 },
676 {"copy-dirlinks", 'k', POPT_ARG_NONE, &copy_dirlinks, 0, 0, 0 },
677 {"keep-dirlinks", 'K', POPT_ARG_NONE, &keep_dirlinks, 0, 0, 0 },
678 {"hard-links", 'H', POPT_ARG_NONE, 0, 'H', 0, 0 },
679 {"no-hard-links", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
680 {"no-H", 0, POPT_ARG_VAL, &preserve_hard_links, 0, 0, 0 },
681 {"relative", 'R', POPT_ARG_VAL, &relative_paths, 1, 0, 0 },
682 {"no-relative", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
683 {"no-R", 0, POPT_ARG_VAL, &relative_paths, 0, 0, 0 },
684 {"implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
685 {"no-implied-dirs", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
686 {"i-d", 0, POPT_ARG_VAL, &implied_dirs, 1, 0, 0 },
687 {"no-i-d", 0, POPT_ARG_VAL, &implied_dirs, 0, 0, 0 },
688 {"chmod", 0, POPT_ARG_STRING, 0, OPT_CHMOD, 0, 0 },
689 {"ignore-times", 'I', POPT_ARG_NONE, &ignore_times, 0, 0, 0 },
690 {"size-only", 0, POPT_ARG_NONE, &size_only, 0, 0, 0 },
691 {"one-file-system", 'x', POPT_ARG_NONE, 0, 'x', 0, 0 },
692 {"no-one-file-system",0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
693 {"no-x", 0, POPT_ARG_VAL, &one_file_system, 0, 0, 0 },
694 {"update", 'u', POPT_ARG_NONE, &update_only, 0, 0, 0 },
695 {"existing", 0, POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
696 {"ignore-non-existing",0,POPT_ARG_NONE, &ignore_non_existing, 0, 0, 0 },
697 {"ignore-existing", 0, POPT_ARG_NONE, &ignore_existing, 0, 0, 0 },
698 {"max-size", 0, POPT_ARG_STRING, &max_size_arg, OPT_MAX_SIZE, 0, 0 },
699 {"min-size", 0, POPT_ARG_STRING, &min_size_arg, OPT_MIN_SIZE, 0, 0 },
700 {"max-alloc", 0, POPT_ARG_STRING, &max_alloc_arg, 0, 0, 0 },
701 {"sparse", 'S', POPT_ARG_VAL, &sparse_files, 1, 0, 0 },
702 {"no-sparse", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
703 {"no-S", 0, POPT_ARG_VAL, &sparse_files, 0, 0, 0 },
704 {"preallocate", 0, POPT_ARG_NONE, &preallocate_files, 0, 0, 0},
705 {"inplace", 0, POPT_ARG_VAL, &inplace, 1, 0, 0 },
706 {"no-inplace", 0, POPT_ARG_VAL, &inplace, 0, 0, 0 },
707 {"append", 0, POPT_ARG_NONE, 0, OPT_APPEND, 0, 0 },
708 {"append-verify", 0, POPT_ARG_VAL, &append_mode, 2, 0, 0 },
709 {"no-append", 0, POPT_ARG_VAL, &append_mode, 0, 0, 0 },
710 {"del", 0, POPT_ARG_NONE, &delete_during, 0, 0, 0 },
711 {"delete", 0, POPT_ARG_NONE, &delete_mode, 0, 0, 0 },
712 {"delete-before", 0, POPT_ARG_NONE, &delete_before, 0, 0, 0 },
713 {"delete-during", 0, POPT_ARG_VAL, &delete_during, 1, 0, 0 },
714 {"delete-delay", 0, POPT_ARG_VAL, &delete_during, 2, 0, 0 },
715 {"delete-after", 0, POPT_ARG_NONE, &delete_after, 0, 0, 0 },
716 {"delete-excluded", 0, POPT_ARG_NONE, &delete_excluded, 0, 0, 0 },
717 {"delete-missing-args",0,POPT_BIT_SET, &missing_args, 2, 0, 0 },
718 {"ignore-missing-args",0,POPT_BIT_SET, &missing_args, 1, 0, 0 },
719 {"remove-sent-files",0, POPT_ARG_VAL, &remove_source_files, 2, 0, 0 }, /* deprecated */
720 {"remove-source-files",0,POPT_ARG_VAL, &remove_source_files, 1, 0, 0 },
721 {"force", 0, POPT_ARG_VAL, &force_delete, 1, 0, 0 },
722 {"no-force", 0, POPT_ARG_VAL, &force_delete, 0, 0, 0 },
723 {"ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 1, 0, 0 },
724 {"no-ignore-errors", 0, POPT_ARG_VAL, &ignore_errors, 0, 0, 0 },
725 {"max-delete", 0, POPT_ARG_INT, &max_delete, 0, 0, 0 },
726 {0, 'F', POPT_ARG_NONE, 0, 'F', 0, 0 },
727 {"filter", 'f', POPT_ARG_STRING, 0, OPT_FILTER, 0, 0 },
728 {"exclude", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE, 0, 0 },
729 {"include", 0, POPT_ARG_STRING, 0, OPT_INCLUDE, 0, 0 },
730 {"exclude-from", 0, POPT_ARG_STRING, 0, OPT_EXCLUDE_FROM, 0, 0 },
731 {"include-from", 0, POPT_ARG_STRING, 0, OPT_INCLUDE_FROM, 0, 0 },
732 {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
733 {"whole-file", 'W', POPT_ARG_VAL, &whole_file, 1, 0, 0 },
734 {"no-whole-file", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
735 {"no-W", 0, POPT_ARG_VAL, &whole_file, 0, 0, 0 },
736 {"checksum", 'c', POPT_ARG_VAL, &always_checksum, 1, 0, 0 },
737 {"no-checksum", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
738 {"no-c", 0, POPT_ARG_VAL, &always_checksum, 0, 0, 0 },
739 {"checksum-choice", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
740 {"cc", 0, POPT_ARG_STRING, &checksum_choice, 0, 0, 0 },
741 {"block-size", 'B', POPT_ARG_STRING, 0, OPT_BLOCK_SIZE, 0, 0 },
742 {"compare-dest", 0, POPT_ARG_STRING, 0, OPT_COMPARE_DEST, 0, 0 },
743 {"copy-dest", 0, POPT_ARG_STRING, 0, OPT_COPY_DEST, 0, 0 },
744 {"link-dest", 0, POPT_ARG_STRING, 0, OPT_LINK_DEST, 0, 0 },
745 {"fuzzy", 'y', POPT_ARG_NONE, 0, 'y', 0, 0 },
746 {"no-fuzzy", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
747 {"no-y", 0, POPT_ARG_VAL, &fuzzy_basis, 0, 0, 0 },
748 {"compress", 'z', POPT_ARG_NONE, 0, 'z', 0, 0 },
749 {"old-compress", 0, POPT_ARG_NONE, 0, OPT_OLD_COMPRESS, 0, 0 },
750 {"new-compress", 0, POPT_ARG_NONE, 0, OPT_NEW_COMPRESS, 0, 0 },
751 {"no-compress", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 },
752 {"no-z", 0, POPT_ARG_NONE, 0, OPT_NO_COMPRESS, 0, 0 },
753 {"compress-choice", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
754 {"zc", 0, POPT_ARG_STRING, &compress_choice, 0, 0, 0 },
755 {"skip-compress", 0, POPT_ARG_STRING, &skip_compress, 0, 0, 0 },
756 {"compress-level", 0, POPT_ARG_INT, &do_compression_level, 0, 0, 0 },
757 {"zl", 0, POPT_ARG_INT, &do_compression_level, 0, 0, 0 },
758 {0, 'P', POPT_ARG_NONE, 0, 'P', 0, 0 },
759 {"progress", 0, POPT_ARG_VAL, &do_progress, 1, 0, 0 },
760 {"no-progress", 0, POPT_ARG_VAL, &do_progress, 0, 0, 0 },
761 {"partial", 0, POPT_ARG_VAL, &keep_partial, 1, 0, 0 },
762 {"no-partial", 0, POPT_ARG_VAL, &keep_partial, 0, 0, 0 },
763 {"partial-dir", 0, POPT_ARG_STRING, &partial_dir, 0, 0, 0 },
764 {"delay-updates", 0, POPT_ARG_VAL, &delay_updates, 1, 0, 0 },
765 {"no-delay-updates", 0, POPT_ARG_VAL, &delay_updates, 0, 0, 0 },
766 {"prune-empty-dirs",'m', POPT_ARG_VAL, &prune_empty_dirs, 1, 0, 0 },
767 {"no-prune-empty-dirs",0,POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
768 {"no-m", 0, POPT_ARG_VAL, &prune_empty_dirs, 0, 0, 0 },
769 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
770 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
771 {"out-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 },
772 {"log-format", 0, POPT_ARG_STRING, &stdout_format, 0, 0, 0 }, /* DEPRECATED */
773 {"itemize-changes", 'i', POPT_ARG_NONE, 0, 'i', 0, 0 },
774 {"no-itemize-changes",0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
775 {"no-i", 0, POPT_ARG_VAL, &itemize_changes, 0, 0, 0 },
776 {"bwlimit", 0, POPT_ARG_STRING, &bwlimit_arg, OPT_BWLIMIT, 0, 0 },
777 {"no-bwlimit", 0, POPT_ARG_VAL, &bwlimit, 0, 0, 0 },
778 {"backup", 'b', POPT_ARG_VAL, &make_backups, 1, 0, 0 },
779 {"no-backup", 0, POPT_ARG_VAL, &make_backups, 0, 0, 0 },
780 {"backup-dir", 0, POPT_ARG_STRING, &backup_dir, 0, 0, 0 },
781 {"suffix", 0, POPT_ARG_STRING, &backup_suffix, 0, 0, 0 },
782 {"list-only", 0, POPT_ARG_VAL, &list_only, 2, 0, 0 },
783 {"read-batch", 0, POPT_ARG_STRING, &batch_name, OPT_READ_BATCH, 0, 0 },
784 {"write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_WRITE_BATCH, 0, 0 },
785 {"only-write-batch", 0, POPT_ARG_STRING, &batch_name, OPT_ONLY_WRITE_BATCH, 0, 0 },
786 {"files-from", 0, POPT_ARG_STRING, &files_from, 0, 0, 0 },
787 {"from0", '0', POPT_ARG_VAL, &eol_nulls, 1, 0, 0},
788 {"no-from0", 0, POPT_ARG_VAL, &eol_nulls, 0, 0, 0},
789 {"old-args", 0, POPT_ARG_NONE, 0, OPT_OLD_ARGS, 0, 0},
790 {"no-old-args", 0, POPT_ARG_VAL, &old_style_args, 0, 0, 0},
791 {"secluded-args", 's', POPT_ARG_VAL, &protect_args, 1, 0, 0},
792 {"no-secluded-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
793 {"protect-args", 0, POPT_ARG_VAL, &protect_args, 1, 0, 0},
794 {"no-protect-args", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
795 {"no-s", 0, POPT_ARG_VAL, &protect_args, 0, 0, 0},
796 {"trust-sender", 0, POPT_ARG_VAL, &trust_sender, 1, 0, 0},
797 {"numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 1, 0, 0 },
798 {"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
799 {"usermap", 0, POPT_ARG_STRING, 0, OPT_USERMAP, 0, 0 },
800 {"groupmap", 0, POPT_ARG_STRING, 0, OPT_GROUPMAP, 0, 0 },
801 {"chown", 0, POPT_ARG_STRING, 0, OPT_CHOWN, 0, 0 },
802 {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
803 {"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
804 {"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 },
805 {"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 },
806 {"fsync", 0, POPT_ARG_NONE, &do_fsync, 0, 0, 0 },
807 {"stop-after", 0, POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 },
808 {"time-limit", 0, POPT_ARG_STRING, 0, OPT_STOP_AFTER, 0, 0 }, /* earlier stop-after name */
809 {"stop-at", 0, POPT_ARG_STRING, 0, OPT_STOP_AT, 0, 0 },
810 {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
811 {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
812 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
813 {"iconv", 0, POPT_ARG_STRING, &iconv_opt, 0, 0, 0 },
814 {"no-iconv", 0, POPT_ARG_NONE, 0, OPT_NO_ICONV, 0, 0 },
815 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
816 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
817 {"8-bit-output", '8', POPT_ARG_VAL, &allow_8bit_chars, 1, 0, 0 },
818 {"no-8-bit-output", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
819 {"no-8", 0, POPT_ARG_VAL, &allow_8bit_chars, 0, 0, 0 },
820 {"mkpath", 0, POPT_ARG_VAL, &mkpath_dest_arg, 1, 0, 0 },
821 {"no-mkpath", 0, POPT_ARG_VAL, &mkpath_dest_arg, 0, 0, 0 },
822 {"qsort", 0, POPT_ARG_NONE, &use_qsort, 0, 0, 0 },
823 {"copy-as", 0, POPT_ARG_STRING, &copy_as, 0, 0, 0 },
824 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
825 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
826 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
827 {"password-file", 0, POPT_ARG_STRING, &password_file, 0, 0, 0 },
828 {"early-input", 0, POPT_ARG_STRING, &early_input_file, 0, 0, 0 },
829 {"blocking-io", 0, POPT_ARG_VAL, &blocking_io, 1, 0, 0 },
830 {"no-blocking-io", 0, POPT_ARG_VAL, &blocking_io, 0, 0, 0 },
831 {"outbuf", 0, POPT_ARG_STRING, &outbuf_mode, 0, 0, 0 },
832 {"remote-option", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
833 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
834 {"checksum-seed", 0, POPT_ARG_INT, &checksum_seed, 0, 0, 0 },
835 {"server", 0, POPT_ARG_NONE, 0, OPT_SERVER, 0, 0 },
836 {"sender", 0, POPT_ARG_NONE, 0, OPT_SENDER, 0, 0 },
837 /* All the following options switch us into daemon-mode option-parsing. */
838 {"config", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
839 {"daemon", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
840 {"dparam", 0, POPT_ARG_STRING, 0, OPT_DAEMON, 0, 0 },
841 {"detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
842 {"no-detach", 0, POPT_ARG_NONE, 0, OPT_DAEMON, 0, 0 },
843 {0,0,0,0, 0, 0, 0}
844 };
845
846 static struct poptOption long_daemon_options[] = {
847 /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
848 {"address", 0, POPT_ARG_STRING, &bind_address, 0, 0, 0 },
849 {"bwlimit", 0, POPT_ARG_INT, &daemon_bwlimit, 0, 0, 0 },
850 {"config", 0, POPT_ARG_STRING, &config_file, 0, 0, 0 },
851 {"daemon", 0, POPT_ARG_NONE, &daemon_opt, 0, 0, 0 },
852 {"dparam", 'M', POPT_ARG_STRING, 0, 'M', 0, 0 },
853 {"ipv4", '4', POPT_ARG_VAL, &default_af_hint, AF_INET, 0, 0 },
854 {"ipv6", '6', POPT_ARG_VAL, &default_af_hint, AF_INET6, 0, 0 },
855 {"detach", 0, POPT_ARG_VAL, &no_detach, 0, 0, 0 },
856 {"no-detach", 0, POPT_ARG_VAL, &no_detach, 1, 0, 0 },
857 {"log-file", 0, POPT_ARG_STRING, &logfile_name, 0, 0, 0 },
858 {"log-file-format", 0, POPT_ARG_STRING, &logfile_format, 0, 0, 0 },
859 {"port", 0, POPT_ARG_INT, &rsync_port, 0, 0, 0 },
860 {"sockopts", 0, POPT_ARG_STRING, &sockopts, 0, 0, 0 },
861 {"protocol", 0, POPT_ARG_INT, &protocol_version, 0, 0, 0 },
862 {"server", 0, POPT_ARG_NONE, &am_server, 0, 0, 0 },
863 {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
864 {"verbose", 'v', POPT_ARG_NONE, 0, 'v', 0, 0 },
865 {"no-verbose", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
866 {"no-v", 0, POPT_ARG_VAL, &verbose, 0, 0, 0 },
867 {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
868 {0,0,0,0, 0, 0, 0}
869 };
870
871
872 static char err_buf[200];
873
874
875 /**
876 * Store the option error message, if any, so that we can log the
877 * connection attempt (which requires parsing the options), and then
878 * show the error later on.
879 **/
880 void option_error(void)
881 {
882 if (!err_buf[0]) {
883 strlcpy(err_buf, "Error parsing options: option may "
884 "be supported on client but not on server?\n",
885 sizeof err_buf);
886 }
887
888 rprintf(FERROR, RSYNC_NAME ": %s", err_buf);
889 io_flush(MSG_FLUSH);
890 msleep(20);
891 }
892
893
894 static void parse_one_refuse_match(int negated, const char *ref, const struct poptOption *list_end)
895 {
896 struct poptOption *op;
897 char shortName[2];
898 int is_wild = strpbrk(ref, "*?[") != NULL;
899 int found_match = 0;
900
901 shortName[1] = '\0';
902
903 if (strcmp("a", ref) == 0 || strcmp("archive", ref) == 0) {
904 ref = "[ardlptgoD]";
905 is_wild = 1;
906 }
907
908 for (op = long_options; op != list_end; op++) {
909 *shortName = op->shortName;
910 if ((op->longName && wildmatch(ref, op->longName))
911 || (*shortName && wildmatch(ref, shortName))) {
912 if (op->descrip[1] == '*')
913 op->descrip = negated ? "a*" : "r*";
914 else if (!is_wild)
915 op->descrip = negated ? "a=" : "r=";
916 found_match = 1;
917 if (!is_wild)
918 break;
919 }
920 }
921
922 if (!found_match)
923 rprintf(FLOG, "No match for refuse-options string \"%s\"\n", ref);
924 }
925
926
927 /**
928 * Tweak the option table to disable all options that the rsyncd.conf
929 * file has told us to refuse.
930 **/
931 static void set_refuse_options(void)
932 {
933 struct poptOption *op, *list_end = NULL;
934 char *cp, *ref = lp_refuse_options(module_id);
935 int negated;
936
937 if (!ref)
938 ref = "";
939
940 if (!am_daemon)
941 ref = "";
942
943 /* We abuse the descrip field in poptOption to make it easy to flag which options
944 * are refused (since we don't use it otherwise). Start by marking all options
945 * as "a"ccepted with a few options also marked as non-wild. */
946 for (op = long_options; ; op++) {
947 const char *longName = op->longName ? op->longName : "";
948 if (!op->longName && !op->shortName) {
949 list_end = op;
950 break;
951 }
952 if (!am_daemon
953 || op->shortName == 'e' /* Required for compatibility flags */
954 || op->shortName == '0' /* --from0 just modifies --files-from, so refuse that instead (or not) */
955 || op->shortName == 's' /* --secluded-args is always OK */
956 || op->shortName == 'n' /* --dry-run is always OK */
957 || strcmp("iconv", longName) == 0
958 || strcmp("no-iconv", longName) == 0
959 || strcmp("checksum-seed", longName) == 0
960 || strcmp("copy-devices", longName) == 0 /* disable wild-match (it gets refused below) */
961 || strcmp("write-devices", longName) == 0 /* disable wild-match (it gets refused below) */
962 || strcmp("log-format", longName) == 0 /* aka out-format (NOT log-file-format) */
963 || strcmp("sender", longName) == 0
964 || strcmp("server", longName) == 0)
965 op->descrip = "a="; /* exact-match only */
966 else
967 op->descrip = "a*"; /* wild-card-able */
968 }
969 assert(list_end != NULL);
970
971 if (am_daemon) { /* Refused by default, but can be accepted via a negated exact match. */
972 parse_one_refuse_match(0, "copy-devices", list_end);
973 parse_one_refuse_match(0, "write-devices", list_end);
974 }
975
976 while (1) {
977 while (*ref == ' ') ref++;
978 if (!*ref)
979 break;
980 if ((cp = strchr(ref, ' ')) != NULL)
981 *cp = '\0';
982 negated = *ref == '!';
983 if (negated && ref[1])
984 ref++;
985 parse_one_refuse_match(negated, ref, list_end);
986 if (!cp)
987 break;
988 *cp = ' ';
989 ref = cp + 1;
990 }
991
992 if (am_daemon) {
993 #ifdef ICONV_OPTION
994 if (!*lp_charset(module_id))
995 parse_one_refuse_match(0, "iconv", list_end);
996 #endif
997 parse_one_refuse_match(0, "log-file*", list_end);
998 }
999
1000 #ifndef SUPPORT_ATIMES
1001 parse_one_refuse_match(0, "atimes", list_end);
1002 #endif
1003 #ifndef SUPPORT_HARD_LINKS
1004 parse_one_refuse_match(0, "link-dest", list_end);
1005 #endif
1006 #ifndef HAVE_MKTIME
1007 parse_one_refuse_match(0, "stop-at", list_end);
1008 #endif
1009 #ifndef ICONV_OPTION
1010 parse_one_refuse_match(0, "iconv", list_end);
1011 #endif
1012 #ifndef HAVE_SETVBUF
1013 parse_one_refuse_match(0, "outbuf", list_end);
1014 #endif
1015 #ifndef SUPPORT_CRTIMES
1016 parse_one_refuse_match(0, "crtimes", list_end);
1017 #endif
1018
1019 /* Now we use the descrip values to actually mark the options for refusal. */
1020 for (op = long_options; op != list_end; op++) {
1021 int refused = op->descrip[0] == 'r';
1022 op->descrip = NULL;
1023 if (!refused)
1024 continue;
1025 if (op->argInfo == POPT_ARG_VAL)
1026 op->argInfo = POPT_ARG_NONE;
1027 op->val = (op - long_options) + OPT_REFUSED_BASE;
1028 /* The following flags are set to let us easily check an implied option later in the code. */
1029 switch (op->shortName) {
1030 case 'r': case 'd': case 'l': case 'p':
1031 case 't': case 'g': case 'o': case 'D':
1032 refused_archive_part = op->val;
1033 break;
1034 case 'z':
1035 refused_compress = op->val;
1036 break;
1037 case '\0':
1038 if (strcmp("delete", op->longName) == 0)
1039 refused_delete = op->val;
1040 else if (strcmp("delete-before", op->longName) == 0)
1041 refused_delete_before = op->val;
1042 else if (strcmp("delete-during", op->longName) == 0)
1043 refused_delete_during = op->val;
1044 else if (strcmp("partial", op->longName) == 0)
1045 refused_partial = op->val;
1046 else if (strcmp("progress", op->longName) == 0)
1047 refused_progress = op->val;
1048 else if (strcmp("inplace", op->longName) == 0)
1049 refused_inplace = op->val;
1050 else if (strcmp("no-iconv", op->longName) == 0)
1051 refused_no_iconv = op->val;
1052 break;
1053 }
1054 }
1055 }
1056
1057
1058 static int count_args(const char **argv)
1059 {
1060 int i = 0;
1061
1062 if (argv) {
1063 while (argv[i] != NULL)
1064 i++;
1065 }
1066
1067 return i;
1068 }
1069
1070 /* If the size_arg is an invalid string or the value is < min_value, an error
1071 * is put into err_buf & the return is -1. Note that this parser does NOT
1072 * support negative numbers, so a min_value < 0 doesn't make any sense. */
1073 static ssize_t parse_size_arg(const char *size_arg, char def_suf, const char *opt_name,
1074 ssize_t min_value, ssize_t max_value, BOOL unlimited_0)
1075 {
1076 int reps, mult, len;
1077 const char *arg, *err = "invalid", *min_max = NULL;
1078 ssize_t limit = -1, size = 1;
1079
1080 for (arg = size_arg; isDigit(arg); arg++) {}
1081 if (*arg == '.' || *arg == get_decimal_point()) /* backward compatibility: always allow '.' */
1082 for (arg++; isDigit(arg); arg++) {}
1083 switch (*arg && *arg != '+' && *arg != '-' ? *arg++ : def_suf) {
1084 case 'b': case 'B':
1085 reps = 0;
1086 break;
1087 case 'k': case 'K':
1088 reps = 1;
1089 break;
1090 case 'm': case 'M':
1091 reps = 2;
1092 break;
1093 case 'g': case 'G':
1094 reps = 3;
1095 break;
1096 case 't': case 'T':
1097 reps = 4;
1098 break;
1099 case 'p': case 'P':
1100 reps = 5;
1101 break;
1102 default:
1103 goto failure;
1104 }
1105 if (*arg == 'b' || *arg == 'B')
1106 mult = 1000, arg++;
1107 else if (!*arg || *arg == '+' || *arg == '-')
1108 mult = 1024;
1109 else if (strncasecmp(arg, "ib", 2) == 0)
1110 mult = 1024, arg += 2;
1111 else
1112 goto failure;
1113 while (reps--)
1114 size *= mult;
1115 size *= atof(size_arg);
1116 if ((*arg == '+' || *arg == '-') && arg[1] == '1' && arg != size_arg)
1117 size += atoi(arg), arg += 2;
1118 if (*arg)
1119 goto failure;
1120 if (size < 0 || (max_value >= 0 && size > max_value)) {
1121 err = "too large";
1122 min_max = "max";
1123 limit = max_value;
1124 goto failure;
1125 }
1126 if (size < min_value && (!unlimited_0 || size != 0)) {
1127 err = "too small";
1128 min_max = "min";
1129 limit = min_value;
1130 goto failure;
1131 }
1132 return size;
1133
1134 failure:
1135 len = snprintf(err_buf, sizeof err_buf - 1, "--%s=%s is %s", opt_name, size_arg, err);
1136 if (min_max && limit >= 0 && len < (int)sizeof err_buf - 10) {
1137 len += snprintf(err_buf + len, sizeof err_buf - len - 1, " (%s: %s%s)",
1138 min_max, do_big_num(limit, 3, NULL),
1139 unlimited_0 && min_max[1] == 'i' ? " or 0 for unlimited" : "");
1140 }
1141 err_buf[len] = '\n';
1142 err_buf[len+1] = '\0';
1143 return -1;
1144 }
1145
1146 #ifdef HAVE_MKTIME
1147 /* Allow the user to specify a time in the format yyyy-mm-ddThh:mm while
1148 * also allowing abbreviated data. For instance, if the time is omitted,
1149 * it defaults to midnight. If the date is omitted, it defaults to the
1150 * next possible date in the future with the specified time. Even the
1151 * year or year-month can be omitted, again defaulting to the next date
1152 * in the future that matches the specified information. A 2-digit year
1153 * is also OK, as is using '/' instead of '-'. */
1154 static time_t parse_time(const char *arg)
1155 {
1156 const char *cp;
1157 time_t val, now = time(NULL);
1158 struct tm t, *today = localtime(&now);
1159 int in_date, old_mday, n;
1160
1161 memset(&t, 0, sizeof t);
1162 t.tm_year = t.tm_mon = t.tm_mday = -1;
1163 t.tm_hour = t.tm_min = t.tm_isdst = -1;
1164 cp = arg;
1165 if (*cp == 'T' || *cp == 't' || *cp == ':') {
1166 in_date = *cp == ':' ? 0 : -1;
1167 cp++;
1168 } else
1169 in_date = 1;
1170 for ( ; ; cp++) {
1171 if (!isDigit(cp))
1172 return (time_t)-1;
1173 n = 0;
1174 do {
1175 n = n * 10 + *cp++ - '0';
1176 } while (isDigit(cp));
1177 if (*cp == ':')
1178 in_date = 0;
1179 if (in_date > 0) {
1180 if (t.tm_year != -1)
1181 return (time_t)-1;
1182 t.tm_year = t.tm_mon;
1183 t.tm_mon = t.tm_mday;
1184 t.tm_mday = n;
1185 if (!*cp)
1186 break;
1187 if (*cp == 'T' || *cp == 't') {
1188 if (!cp[1])
1189 break;
1190 in_date = -1;
1191 } else if (*cp != '-' && *cp != '/')
1192 return (time_t)-1;
1193 continue;
1194 }
1195 if (t.tm_hour != -1)
1196 return (time_t)-1;
1197 t.tm_hour = t.tm_min;
1198 t.tm_min = n;
1199 if (!*cp) {
1200 if (in_date < 0)
1201 return (time_t)-1;
1202 break;
1203 }
1204 if (*cp != ':')
1205 return (time_t)-1;
1206 in_date = 0;
1207 }
1208
1209 in_date = 0;
1210 if (t.tm_year < 0) {
1211 t.tm_year = today->tm_year;
1212 in_date = 1;
1213 } else if (t.tm_year < 100) {
1214 while (t.tm_year < today->tm_year)
1215 t.tm_year += 100;
1216 } else
1217 t.tm_year -= 1900;
1218 if (t.tm_mon < 0) {
1219 t.tm_mon = today->tm_mon;
1220 in_date = 2;
1221 } else
1222 t.tm_mon--;
1223 if (t.tm_mday < 0) {
1224 t.tm_mday = today->tm_mday;
1225 in_date = 3;
1226 }
1227
1228 n = 0;
1229 if (t.tm_min < 0) {
1230 t.tm_hour = t.tm_min = 0;
1231 } else if (t.tm_hour < 0) {
1232 if (in_date != 3)
1233 return (time_t)-1;
1234 in_date = 0;
1235 t.tm_hour = today->tm_hour;
1236 n = 60*60;
1237 }
1238
1239 /* Note that mktime() might change a too-large tm_mday into the start of
1240 * the following month which we need to undo in the following code! */
1241 old_mday = t.tm_mday;
1242 if (t.tm_hour > 23 || t.tm_min > 59
1243 || t.tm_mon < 0 || t.tm_mon >= 12
1244 || t.tm_mday < 1 || t.tm_mday > 31
1245 || (val = mktime(&t)) == (time_t)-1)
1246 return (time_t)-1;
1247
1248 while (in_date && (val <= now || t.tm_mday < old_mday)) {
1249 switch (in_date) {
1250 case 3:
1251 old_mday = ++t.tm_mday;
1252 break;
1253 case 2:
1254 if (t.tm_mday < old_mday)
1255 t.tm_mday = old_mday; /* The month already got bumped forward */
1256 else if (++t.tm_mon == 12) {
1257 t.tm_mon = 0;
1258 t.tm_year++;
1259 }
1260 break;
1261 case 1:
1262 if (t.tm_mday < old_mday) {
1263 /* mon==1 mday==29 got bumped to mon==2 */
1264 if (t.tm_mon != 2 || old_mday != 29)
1265 return (time_t)-1;
1266 t.tm_mon = 1;
1267 t.tm_mday = 29;
1268 }
1269 t.tm_year++;
1270 break;
1271 }
1272 if ((val = mktime(&t)) == (time_t)-1) {
1273 /* This code shouldn't be needed, as mktime() should auto-round to the next month. */
1274 if (in_date != 3 || t.tm_mday <= 28)
1275 return (time_t)-1;
1276 t.tm_mday = old_mday = 1;
1277 in_date = 2;
1278 }
1279 }
1280 if (n) {
1281 while (val <= now)
1282 val += n;
1283 }
1284 return val;
1285 }
1286 #endif
1287
1288 static void create_refuse_error(int which)
1289 {
1290 const char *msg;
1291 if (am_daemon)
1292 msg = "The server is configured to refuse";
1293 else if (am_server)
1294 msg = "The server does not support";
1295 else
1296 msg = "This rsync does not support";
1297
1298 /* The "which" value is the index + OPT_REFUSED_BASE. */
1299 struct poptOption *op = &long_options[which - OPT_REFUSED_BASE];
1300 int n = snprintf(err_buf, sizeof err_buf, "%s --%s\n", msg, op->longName) - 1;
1301 if (op->shortName)
1302 snprintf(err_buf + n, sizeof err_buf - n, " (-%c)\n", op->shortName);
1303 }
1304
1305 /* This is used to make sure that --daemon & --server cannot be aliased to
1306 * something else. These options have always disabled popt aliases for the
1307 * parsing of a daemon or server command-line, but we have to make sure that
1308 * these options cannot vanish so that the alias disabling can take effect. */
1309 static void popt_unalias(poptContext con, const char *opt)
1310 {
1311 struct poptAlias unalias;
1312
1313 memset(&unalias, 0, sizeof unalias);
1314
1315 unalias.longName = opt + 2; /* point past the leading "--" */
1316 unalias.argc = 1;
1317 unalias.argv = new_array0(const char*, 2);
1318 unalias.argv[0] = strdup(opt);
1319
1320 poptAddAlias(con, unalias, 0);
1321 }
1322
1323 char *alt_dest_opt(int type)
1324 {
1325 if (!type)
1326 type = alt_dest_type;
1327
1328 switch (type) {
1329 case COMPARE_DEST:
1330 return "--compare-dest";
1331 case COPY_DEST:
1332 return "--copy-dest";
1333 case LINK_DEST:
1334 return "--link-dest";
1335 default:
1336 NOISY_DEATH("Unknown alt_dest_opt type");
1337 }
1338 }
1339
1340 /**
1341 * Process command line arguments. Called on both local and remote.
1342 *
1343 * @retval 1 if all options are OK; with globals set to appropriate
1344 * values
1345 *
1346 * @retval 0 on error, with err_buf containing an explanation
1347 **/
1348 int parse_arguments(int *argc_p, const char ***argv_p)
1349 {
1350 static poptContext pc;
1351 const char *arg, **argv = *argv_p;
1352 int argc = *argc_p;
1353 int opt, want_dest_type;
1354 int orig_protect_args = protect_args;
1355
1356 if (argc == 0) {
1357 strlcpy(err_buf, "argc is zero!\n", sizeof err_buf);
1358 return 0;
1359 }
1360
1361 set_refuse_options();
1362
1363 #ifdef ICONV_OPTION
1364 if (!am_daemon && protect_args <= 0 && (arg = getenv("RSYNC_ICONV")) != NULL && *arg)
1365 iconv_opt = strdup(arg);
1366 #endif
1367
1368 /* TODO: Call poptReadDefaultConfig; handle errors. */
1369
1370 /* The context leaks in case of an error, but if there's a
1371 * problem we always exit anyhow. */
1372 if (pc)
1373 poptFreeContext(pc);
1374 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1375 if (!am_server) {
1376 poptReadDefaultConfig(pc, 0);
1377 popt_unalias(pc, "--daemon");
1378 popt_unalias(pc, "--server");
1379 }
1380
1381 while ((opt = poptGetNextOpt(pc)) != -1) {
1382 /* most options are handled automatically by popt;
1383 * only special cases are returned and listed here. */
1384
1385 switch (opt) {
1386 case 'V':
1387 version_opt_cnt++;
1388 break;
1389
1390 case OPT_SERVER:
1391 if (!am_server) {
1392 /* Disable popt aliases on the server side and
1393 * then start parsing the options again. */
1394 poptFreeContext(pc);
1395 pc = poptGetContext(RSYNC_NAME, argc, argv, long_options, 0);
1396 am_server = 1;
1397 }
1398 #ifdef ICONV_OPTION
1399 iconv_opt = NULL;
1400 #endif
1401 break;
1402
1403 case OPT_SENDER:
1404 if (!am_server) {
1405 usage(FERROR);
1406 exit_cleanup(RERR_SYNTAX);
1407 }
1408 am_sender = 1;
1409 break;
1410
1411 case OPT_DAEMON:
1412 if (am_daemon) {
1413 strlcpy(err_buf,
1414 "Attempt to hack rsync thwarted!\n",
1415 sizeof err_buf);
1416 return 0;
1417 }
1418 #ifdef ICONV_OPTION
1419 iconv_opt = NULL;
1420 #endif
1421 protect_args = 0;
1422 poptFreeContext(pc);
1423 pc = poptGetContext(RSYNC_NAME, argc, argv, long_daemon_options, 0);
1424 while ((opt = poptGetNextOpt(pc)) != -1) {
1425 char **cpp;
1426 switch (opt) {
1427 case 'h':
1428 daemon_usage(FINFO);
1429 exit_cleanup(0);
1430
1431 case 'M':
1432 arg = poptGetOptArg(pc);
1433 if (!strchr(arg, '=')) {
1434 rprintf(FERROR,
1435 "--dparam value is missing an '=': %s\n",
1436 arg);
1437 goto daemon_error;
1438 }
1439 cpp = EXPAND_ITEM_LIST(&dparam_list, char *, 4);
1440 *cpp = strdup(arg);
1441 break;
1442
1443 case 'v':
1444 verbose++;
1445 break;
1446
1447 default:
1448 rprintf(FERROR,
1449 "rsync: %s: %s (in daemon mode)\n",
1450 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1451 poptStrerror(opt));
1452 goto daemon_error;
1453 }
1454 }
1455
1456 if (dparam_list.count && !set_dparams(1))
1457 exit_cleanup(RERR_SYNTAX);
1458
1459 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
1460 snprintf(err_buf, sizeof err_buf,
1461 "the --temp-dir path is WAY too long.\n");
1462 return 0;
1463 }
1464
1465 if (!daemon_opt) {
1466 rprintf(FERROR, "Daemon option(s) used without --daemon.\n");
1467 daemon_error:
1468 rprintf(FERROR, "(Type \"rsync --daemon --help\" for assistance with daemon mode.)\n");
1469 exit_cleanup(RERR_SYNTAX);
1470 }
1471
1472 *argv_p = argv = poptGetArgs(pc);
1473 *argc_p = argc = count_args(argv);
1474 am_starting_up = 0;
1475 daemon_opt = 0;
1476 am_daemon = 1;
1477 return 1;
1478
1479 case OPT_MODIFY_WINDOW:
1480 /* The value has already been set by popt, but
1481 * we need to remember that we're using a
1482 * non-default setting. */
1483 modify_window_set = 1;
1484 break;
1485
1486 case OPT_FILTER:
1487 parse_filter_str(&filter_list, poptGetOptArg(pc),
1488 rule_template(0), 0);
1489 break;
1490
1491 case OPT_EXCLUDE:
1492 parse_filter_str(&filter_list, poptGetOptArg(pc),
1493 rule_template(0), XFLG_OLD_PREFIXES);
1494 break;
1495
1496 case OPT_INCLUDE:
1497 parse_filter_str(&filter_list, poptGetOptArg(pc),
1498 rule_template(FILTRULE_INCLUDE), XFLG_OLD_PREFIXES);
1499 break;
1500
1501 case OPT_EXCLUDE_FROM:
1502 case OPT_INCLUDE_FROM:
1503 arg = poptGetOptArg(pc);
1504 if (sanitize_paths)
1505 arg = sanitize_path(NULL, arg, NULL, 0, SP_DEFAULT);
1506 if (daemon_filter_list.head) {
1507 int rej;
1508 char *cp = strdup(arg);
1509 if (!*cp)
1510 rej = 1;
1511 else {
1512 char *dir = cp + (*cp == '/' ? module_dirlen : 0);
1513 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
1514 rej = check_filter(&daemon_filter_list, FLOG, dir, 0) < 0;
1515 }
1516 free(cp);
1517 if (rej)
1518 goto options_rejected;
1519 }
1520 parse_filter_file(&filter_list, arg,
1521 rule_template(opt == OPT_INCLUDE_FROM ? FILTRULE_INCLUDE : 0),
1522 XFLG_FATAL_ERRORS | XFLG_OLD_PREFIXES);
1523 break;
1524
1525 case 'a':
1526 if (refused_archive_part) {
1527 create_refuse_error(refused_archive_part);
1528 return 0;
1529 }
1530 if (!recurse) /* preserve recurse == 2 */
1531 recurse = 1;
1532 #ifdef SUPPORT_LINKS
1533 preserve_links = 1;
1534 #endif
1535 preserve_perms = 1;
1536 preserve_mtimes = 1;
1537 preserve_gid = 1;
1538 preserve_uid = 1;
1539 preserve_devices = 1;
1540 preserve_specials = 1;
1541 break;
1542
1543 case 'D':
1544 preserve_devices = preserve_specials = 1;
1545 break;
1546
1547 case OPT_NO_D:
1548 preserve_devices = preserve_specials = 0;
1549 break;
1550
1551 case 'h':
1552 human_readable++;
1553 break;
1554
1555 case 'H':
1556 preserve_hard_links++;
1557 break;
1558
1559 case 'i':
1560 itemize_changes++;
1561 break;
1562
1563 case 'U':
1564 if (++preserve_atimes > 1)
1565 open_noatime = 1;
1566 break;
1567
1568 case 'v':
1569 verbose++;
1570 break;
1571
1572 case 'y':
1573 fuzzy_basis++;
1574 break;
1575
1576 case 'q':
1577 quiet++;
1578 break;
1579
1580 case 'x':
1581 one_file_system++;
1582 break;
1583
1584 case 'F':
1585 switch (++F_option_cnt) {
1586 case 1:
1587 parse_filter_str(&filter_list,": /.rsync-filter",rule_template(0),0);
1588 break;
1589 case 2:
1590 parse_filter_str(&filter_list,"- .rsync-filter",rule_template(0),0);
1591 break;
1592 }
1593 break;
1594
1595 case 'P':
1596 if (refused_partial || refused_progress) {
1597 create_refuse_error(refused_partial ? refused_partial : refused_progress);
1598 return 0;
1599 }
1600 do_progress = 1;
1601 keep_partial = 1;
1602 break;
1603
1604 case 'z':
1605 do_compression++;
1606 break;
1607
1608 case OPT_OLD_COMPRESS:
1609 compress_choice = "zlib";
1610 break;
1611
1612 case OPT_NEW_COMPRESS:
1613 compress_choice = "zlibx";
1614 break;
1615
1616 case OPT_NO_COMPRESS:
1617 do_compression = 0;
1618 compress_choice = NULL;
1619 break;
1620
1621 case OPT_OLD_ARGS:
1622 if (old_style_args <= 0)
1623 old_style_args = 1;
1624 else
1625 old_style_args++;
1626 break;
1627
1628 case 'M':
1629 arg = poptGetOptArg(pc);
1630 if (*arg != '-') {
1631 snprintf(err_buf, sizeof err_buf,
1632 "Remote option must start with a dash: %s\n", arg);
1633 return 0;
1634 }
1635 if (remote_option_cnt+2 >= remote_option_alloc) {
1636 remote_option_alloc += 16;
1637 remote_options = realloc_array(remote_options,
1638 const char *, remote_option_alloc);
1639 if (!remote_option_cnt)
1640 remote_options[0] = "ARG0";
1641 }
1642 remote_options[++remote_option_cnt] = arg;
1643 remote_options[remote_option_cnt+1] = NULL;
1644 break;
1645
1646 case OPT_WRITE_BATCH:
1647 /* batch_name is already set */
1648 write_batch = 1;
1649 break;
1650
1651 case OPT_ONLY_WRITE_BATCH:
1652 /* batch_name is already set */
1653 write_batch = -1;
1654 break;
1655
1656 case OPT_READ_BATCH:
1657 /* batch_name is already set */
1658 read_batch = 1;
1659 break;
1660
1661 case OPT_NO_ICONV:
1662 #ifdef ICONV_OPTION
1663 iconv_opt = NULL;
1664 #endif
1665 break;
1666
1667 case OPT_BLOCK_SIZE: {
1668 /* We may not know the real protocol_version at this point if this is the client
1669 * option parsing, but we still want to check it so that the client can specify
1670 * a --protocol=29 option with a larger block size. */
1671 int max_blength = protocol_version < 30 ? OLD_MAX_BLOCK_SIZE : MAX_BLOCK_SIZE;
1672 ssize_t size;
1673 arg = poptGetOptArg(pc);
1674 if ((size = parse_size_arg(arg, 'b', "block-size", 0, max_blength, False)) < 0)
1675 return 0;
1676 block_size = (int32)size;
1677 break;
1678 }
1679
1680 case OPT_MAX_SIZE:
1681 if ((max_size = parse_size_arg(max_size_arg, 'b', "max-size", 0, -1, False)) < 0)
1682 return 0;
1683 max_size_arg = strdup(do_big_num(max_size, 0, NULL));
1684 break;
1685
1686 case OPT_MIN_SIZE:
1687 if ((min_size = parse_size_arg(min_size_arg, 'b', "min-size", 0, -1, False)) < 0)
1688 return 0;
1689 min_size_arg = strdup(do_big_num(min_size, 0, NULL));
1690 break;
1691
1692 case OPT_BWLIMIT: {
1693 ssize_t size = parse_size_arg(bwlimit_arg, 'K', "bwlimit", 512, -1, True);
1694 if (size < 0)
1695 return 0;
1696 bwlimit_arg = strdup(do_big_num(size, 0, NULL));
1697 bwlimit = (size + 512) / 1024;
1698 break;
1699 }
1700
1701 case OPT_APPEND:
1702 if (am_server)
1703 append_mode++;
1704 else
1705 append_mode = 1;
1706 break;
1707
1708 case OPT_LINK_DEST:
1709 want_dest_type = LINK_DEST;
1710 goto set_dest_dir;
1711
1712 case OPT_COPY_DEST:
1713 want_dest_type = COPY_DEST;
1714 goto set_dest_dir;
1715
1716 case OPT_COMPARE_DEST:
1717 want_dest_type = COMPARE_DEST;
1718
1719 set_dest_dir:
1720 if (alt_dest_type && alt_dest_type != want_dest_type) {
1721 snprintf(err_buf, sizeof err_buf,
1722 "ERROR: the %s option conflicts with the %s option\n",
1723 alt_dest_opt(want_dest_type), alt_dest_opt(0));
1724 return 0;
1725 }
1726 alt_dest_type = want_dest_type;
1727
1728 if (basis_dir_cnt >= MAX_BASIS_DIRS) {
1729 snprintf(err_buf, sizeof err_buf,
1730 "ERROR: at most %d %s args may be specified\n",
1731 MAX_BASIS_DIRS, alt_dest_opt(0));
1732 return 0;
1733 }
1734 /* We defer sanitizing this arg until we know what
1735 * our destination directory is going to be. */
1736 basis_dir[basis_dir_cnt++] = (char *)poptGetOptArg(pc);
1737 break;
1738
1739 case OPT_CHMOD:
1740 arg = poptGetOptArg(pc);
1741 if (!parse_chmod(arg, &chmod_modes)) {
1742 snprintf(err_buf, sizeof err_buf,
1743 "Invalid argument passed to --chmod (%s)\n",
1744 arg);
1745 return 0;
1746 }
1747 break;
1748
1749 case OPT_INFO:
1750 arg = poptGetOptArg(pc);
1751 parse_output_words(info_words, info_levels, arg, USER_PRIORITY);
1752 break;
1753
1754 case OPT_DEBUG:
1755 arg = poptGetOptArg(pc);
1756 parse_output_words(debug_words, debug_levels, arg, USER_PRIORITY);
1757 break;
1758
1759 case OPT_USERMAP:
1760 if (usermap) {
1761 if (usermap_via_chown) {
1762 snprintf(err_buf, sizeof err_buf,
1763 "--usermap conflicts with prior --chown.\n");
1764 return 0;
1765 }
1766 snprintf(err_buf, sizeof err_buf,
1767 "You can only specify --usermap once.\n");
1768 return 0;
1769 }
1770 usermap = (char *)poptGetOptArg(pc);
1771 usermap_via_chown = False;
1772 preserve_uid = 1;
1773 break;
1774
1775 case OPT_GROUPMAP:
1776 if (groupmap) {
1777 if (groupmap_via_chown) {
1778 snprintf(err_buf, sizeof err_buf,
1779 "--groupmap conflicts with prior --chown.\n");
1780 return 0;
1781 }
1782 snprintf(err_buf, sizeof err_buf,
1783 "You can only specify --groupmap once.\n");
1784 return 0;
1785 }
1786 groupmap = (char *)poptGetOptArg(pc);
1787 groupmap_via_chown = False;
1788 preserve_gid = 1;
1789 break;
1790
1791 case OPT_CHOWN: {
1792 const char *chown = poptGetOptArg(pc);
1793 int len;
1794 if ((arg = strchr(chown, ':')) != NULL)
1795 len = arg++ - chown;
1796 else
1797 len = strlen(chown);
1798 if (len) {
1799 if (usermap) {
1800 if (!usermap_via_chown) {
1801 snprintf(err_buf, sizeof err_buf,
1802 "--chown conflicts with prior --usermap.\n");
1803 return 0;
1804 }
1805 snprintf(err_buf, sizeof err_buf,
1806 "You can only specify a user-affecting --chown once.\n");
1807 return 0;
1808 }
1809 if (asprintf(&usermap, "*:%.*s", len, chown) < 0)
1810 out_of_memory("parse_arguments");
1811 usermap_via_chown = True;
1812 preserve_uid = 1;
1813 }
1814 if (arg && *arg) {
1815 if (groupmap) {
1816 if (!groupmap_via_chown) {
1817 snprintf(err_buf, sizeof err_buf,
1818 "--chown conflicts with prior --groupmap.\n");
1819 return 0;
1820 }
1821 snprintf(err_buf, sizeof err_buf,
1822 "You can only specify a group-affecting --chown once.\n");
1823 return 0;
1824 }
1825 if (asprintf(&groupmap, "*:%s", arg) < 0)
1826 out_of_memory("parse_arguments");
1827 groupmap_via_chown = True;
1828 preserve_gid = 1;
1829 }
1830 break;
1831 }
1832
1833 case OPT_HELP:
1834 usage(FINFO);
1835 exit_cleanup(0);
1836
1837 case 'A':
1838 #ifdef SUPPORT_ACLS
1839 preserve_acls = 1;
1840 preserve_perms = 1;
1841 break;
1842 #else
1843 /* FIXME: this should probably be ignored with a
1844 * warning and then countermeasures taken to
1845 * restrict group and other access in the presence
1846 * of any more restrictive ACLs, but this is safe
1847 * for now */
1848 snprintf(err_buf,sizeof(err_buf),
1849 "ACLs are not supported on this %s\n",
1850 am_server ? "server" : "client");
1851 return 0;
1852 #endif
1853
1854 case 'X':
1855 #ifdef SUPPORT_XATTRS
1856 preserve_xattrs++;
1857 break;
1858 #else
1859 snprintf(err_buf,sizeof(err_buf),
1860 "extended attributes are not supported on this %s\n",
1861 am_server ? "server" : "client");
1862 return 0;
1863 #endif
1864
1865 case OPT_STOP_AFTER: {
1866 long val;
1867 arg = poptGetOptArg(pc);
1868 stop_at_utime = time(NULL);
1869 if ((val = atol(arg) * 60) <= 0 || LONG_MAX - val < stop_at_utime || (long)(time_t)val != val) {
1870 snprintf(err_buf, sizeof err_buf, "invalid --stop-after value: %s\n", arg);
1871 return 0;
1872 }
1873 stop_at_utime += val;
1874 break;
1875 }
1876
1877 #ifdef HAVE_MKTIME
1878 case OPT_STOP_AT:
1879 arg = poptGetOptArg(pc);
1880 if ((stop_at_utime = parse_time(arg)) == (time_t)-1) {
1881 snprintf(err_buf, sizeof err_buf, "invalid --stop-at format: %s\n", arg);
1882 return 0;
1883 }
1884 if (stop_at_utime <= time(NULL)) {
1885 snprintf(err_buf, sizeof err_buf, "--stop-at time is not in the future: %s\n", arg);
1886 return 0;
1887 }
1888 break;
1889 #endif
1890
1891 case OPT_STDERR: {
1892 int len;
1893 arg = poptGetOptArg(pc);
1894 len = strlen(arg);
1895 if (len && strncmp("errors", arg, len) == 0)
1896 msgs2stderr = 2;
1897 else if (len && strncmp("all", arg, len) == 0)
1898 msgs2stderr = 1;
1899 else if (len && strncmp("client", arg, len) == 0)
1900 msgs2stderr = 0;
1901 else {
1902 snprintf(err_buf, sizeof err_buf,
1903 "--stderr mode \"%s\" is not one of errors, all, or client\n", arg);
1904 return 0;
1905 }
1906 saw_stderr_opt = 1;
1907 break;
1908 }
1909
1910 default:
1911 /* A large opt value means that set_refuse_options()
1912 * turned this option off. */
1913 if (opt >= OPT_REFUSED_BASE) {
1914 create_refuse_error(opt);
1915 return 0;
1916 }
1917 snprintf(err_buf, sizeof err_buf, "%s%s: %s\n",
1918 am_server ? "on remote machine: " : "",
1919 poptBadOption(pc, POPT_BADOPTION_NOALIAS),
1920 poptStrerror(opt));
1921 return 0;
1922 }
1923 }
1924
1925 if (msgs2stderr != 2)
1926 saw_stderr_opt = 1;
1927
1928 if (version_opt_cnt) {
1929 print_rsync_version(version_opt_cnt > 1 && !am_server ? FNONE : FINFO);
1930 exit_cleanup(0);
1931 }
1932
1933 if (!max_alloc_arg) {
1934 max_alloc_arg = getenv("RSYNC_MAX_ALLOC");
1935 if (max_alloc_arg && !*max_alloc_arg)
1936 max_alloc_arg = NULL;
1937 }
1938 if (max_alloc_arg) {
1939 ssize_t size = parse_size_arg(max_alloc_arg, 'B', "max-alloc", 1024*1024, -1, True);
1940 if (size < 0)
1941 return 0;
1942 max_alloc = size;
1943 }
1944
1945 if (old_style_args < 0) {
1946 if (!am_server && protect_args <= 0 && (arg = getenv("RSYNC_OLD_ARGS")) != NULL && *arg) {
1947 protect_args = 0;
1948 old_style_args = atoi(arg);
1949 } else
1950 old_style_args = 0;
1951 } else if (old_style_args) {
1952 if (protect_args > 0) {
1953 snprintf(err_buf, sizeof err_buf,
1954 "--secluded-args conflicts with --old-args.\n");
1955 return 0;
1956 }
1957 protect_args = 0;
1958 }
1959
1960 if (protect_args < 0) {
1961 if (am_server)
1962 protect_args = 0;
1963 else if ((arg = getenv("RSYNC_PROTECT_ARGS")) != NULL && *arg)
1964 protect_args = atoi(arg) ? 1 : 0;
1965 else {
1966 #ifdef RSYNC_USE_SECLUDED_ARGS
1967 protect_args = 1;
1968 #else
1969 protect_args = 0;
1970 #endif
1971 }
1972 }
1973
1974 if (checksum_choice && strcasecmp(checksum_choice, "auto") != 0 && strcasecmp(checksum_choice, "auto,auto") != 0) {
1975 /* Call this early to verify the args and figure out if we need to force
1976 * --whole-file. Note that the parse function will get called again later,
1977 * just in case an "auto" choice needs to know the protocol_version. */
1978 parse_checksum_choice(0);
1979 } else
1980 checksum_choice = NULL;
1981
1982 if (human_readable > 1 && argc == 2 && !am_server) {
1983 /* Allow the old meaning of 'h' (--help) on its own. */
1984 usage(FINFO);
1985 exit_cleanup(0);
1986 }
1987
1988 if (!compress_choice && do_compression > 1)
1989 compress_choice = "zlibx";
1990 if (compress_choice && strcasecmp(compress_choice, "auto") != 0)
1991 parse_compress_choice(0); /* Twiddles do_compression and can possibly NULL-out compress_choice. */
1992 else
1993 compress_choice = NULL;
1994
1995 if (do_compression || do_compression_level != CLVL_NOT_SPECIFIED) {
1996 if (!do_compression)
1997 do_compression = CPRES_AUTO;
1998 if (do_compression && refused_compress) {
1999 create_refuse_error(refused_compress);
2000 return 0;
2001 }
2002 }
2003
2004 #ifdef HAVE_SETVBUF
2005 if (outbuf_mode && !am_server) {
2006 int mode = *(uchar *)outbuf_mode;
2007 if (islower(mode))
2008 mode = toupper(mode);
2009 fflush(stdout); /* Just in case... */
2010 switch (mode) {
2011 case 'N': /* None */
2012 case 'U': /* Unbuffered */
2013 mode = _IONBF;
2014 break;
2015 case 'L': /* Line */
2016 mode = _IOLBF;
2017 break;
2018 case 'B': /* Block */
2019 case 'F': /* Full */
2020 mode = _IOFBF;
2021 break;
2022 default:
2023 snprintf(err_buf, sizeof err_buf,
2024 "Invalid --outbuf setting -- specify N, L, or B.\n");
2025 return 0;
2026 }
2027 setvbuf(stdout, (char *)NULL, mode, 0);
2028 }
2029
2030 if (msgs2stderr == 1) { /* Are all messages going to stderr? */
2031 /* Make stderr line buffered for better sharing of the stream. */
2032 fflush(stderr); /* Just in case... */
2033 setvbuf(stderr, (char *)NULL, _IOLBF, 0);
2034 }
2035 #endif
2036
2037 set_output_verbosity(verbose, DEFAULT_PRIORITY);
2038
2039 if (do_stats) {
2040 parse_output_words(info_words, info_levels,
2041 verbose > 1 ? "stats3" : "stats2", DEFAULT_PRIORITY);
2042 }
2043
2044 #ifdef ICONV_OPTION
2045 if (iconv_opt && protect_args != 2) {
2046 if (!am_server && strcmp(iconv_opt, "-") == 0)
2047 iconv_opt = NULL;
2048 else
2049 need_unsorted_flist = 1;
2050 }
2051 if (refused_no_iconv && !iconv_opt) {
2052 create_refuse_error(refused_no_iconv);
2053 return 0;
2054 }
2055 #endif
2056
2057 if (fuzzy_basis > 1)
2058 fuzzy_basis = basis_dir_cnt + 1;
2059
2060 /* Don't let the client reset protect_args if it was already processed */
2061 if (orig_protect_args == 2 && am_server)
2062 protect_args = orig_protect_args;
2063
2064 if (protect_args == 1 && am_server)
2065 return 1;
2066
2067 *argv_p = argv = poptGetArgs(pc);
2068 *argc_p = argc = count_args(argv);
2069
2070 #ifndef SUPPORT_LINKS
2071 if (preserve_links && !am_sender) {
2072 snprintf(err_buf, sizeof err_buf,
2073 "symlinks are not supported on this %s\n",
2074 am_server ? "server" : "client");
2075 return 0;
2076 }
2077 #endif
2078
2079 #ifndef SUPPORT_HARD_LINKS
2080 if (preserve_hard_links) {
2081 snprintf(err_buf, sizeof err_buf,
2082 "hard links are not supported on this %s\n",
2083 am_server ? "server" : "client");
2084 return 0;
2085 }
2086 #endif
2087
2088 #ifdef SUPPORT_XATTRS
2089 if (am_root < 0 && preserve_xattrs > 1) {
2090 snprintf(err_buf, sizeof err_buf,
2091 "--fake-super conflicts with -XX\n");
2092 return 0;
2093 }
2094 #else
2095 if (am_root < 0) {
2096 snprintf(err_buf, sizeof err_buf,
2097 "--fake-super requires an rsync with extended attributes enabled\n");
2098 return 0;
2099 }
2100 #endif
2101
2102 if (write_batch && read_batch) {
2103 snprintf(err_buf, sizeof err_buf,
2104 "--write-batch and --read-batch can not be used together\n");
2105 return 0;
2106 }
2107 if (write_batch > 0 || read_batch) {
2108 if (am_server) {
2109 rprintf(FINFO,
2110 "ignoring --%s-batch option sent to server\n",
2111 write_batch ? "write" : "read");
2112 /* We don't actually exit_cleanup(), so that we can
2113 * still service older version clients that still send
2114 * batch args to server. */
2115 read_batch = write_batch = 0;
2116 batch_name = NULL;
2117 } else if (dry_run)
2118 write_batch = 0;
2119 } else if (write_batch < 0 && dry_run)
2120 write_batch = 0;
2121 if (read_batch && files_from) {
2122 snprintf(err_buf, sizeof err_buf,
2123 "--read-batch cannot be used with --files-from\n");
2124 return 0;
2125 }
2126 if (read_batch && remove_source_files) {
2127 snprintf(err_buf, sizeof err_buf,
2128 "--read-batch cannot be used with --remove-%s-files\n",
2129 remove_source_files == 1 ? "source" : "sent");
2130 return 0;
2131 }
2132 if (batch_name && strlen(batch_name) > MAX_BATCH_NAME_LEN) {
2133 snprintf(err_buf, sizeof err_buf,
2134 "the batch-file name must be %d characters or less.\n",
2135 MAX_BATCH_NAME_LEN);
2136 return 0;
2137 }
2138
2139 if (tmpdir && strlen(tmpdir) >= MAXPATHLEN - 10) {
2140 snprintf(err_buf, sizeof err_buf,
2141 "the --temp-dir path is WAY too long.\n");
2142 return 0;
2143 }
2144
2145 if (max_delete < 0 && max_delete != INT_MIN) {
2146 /* Negative numbers are treated as "no deletions". */
2147 max_delete = 0;
2148 }
2149
2150 if (files_from) {
2151 if (recurse == 1) /* preserve recurse == 2 */
2152 recurse = 0;
2153 if (xfer_dirs < 0)
2154 xfer_dirs = 1;
2155 }
2156
2157 if (argc < 2 && !read_batch && !am_server)
2158 list_only |= 1;
2159
2160 if (xfer_dirs >= 4) {
2161 parse_filter_str(&filter_list, "- /*/*", rule_template(0), 0);
2162 recurse = xfer_dirs = 1;
2163 } else if (recurse)
2164 xfer_dirs = 1;
2165 else if (xfer_dirs < 0)
2166 xfer_dirs = list_only ? 1 : 0;
2167
2168 if (relative_paths < 0)
2169 relative_paths = files_from? 1 : 0;
2170 if (!relative_paths)
2171 implied_dirs = 0;
2172
2173 if (delete_before + !!delete_during + delete_after > 1) {
2174 snprintf(err_buf, sizeof err_buf,
2175 "You may not combine multiple --delete-WHEN options.\n");
2176 return 0;
2177 }
2178 if (delete_before || delete_during || delete_after)
2179 delete_mode = 1;
2180 else if (delete_mode || delete_excluded) {
2181 /* Only choose now between before & during if one is refused. */
2182 if (refused_delete_before) {
2183 if (!refused_delete_during)
2184 delete_during = 1;
2185 else {
2186 create_refuse_error(refused_delete_before);
2187 return 0;
2188 }
2189 } else if (refused_delete_during)
2190 delete_before = 1;
2191 delete_mode = 1;
2192 }
2193 if (!xfer_dirs && delete_mode) {
2194 snprintf(err_buf, sizeof err_buf,
2195 "--delete does not work without --recursive (-r) or --dirs (-d).\n");
2196 return 0;
2197 }
2198
2199 if (missing_args == 3) /* simplify if both options were specified */
2200 missing_args = 2;
2201 if (refused_delete && (delete_mode || missing_args == 2)) {
2202 create_refuse_error(refused_delete);
2203 return 0;
2204 }
2205
2206 if (remove_source_files) {
2207 /* We only want to infer this refusal of --remove-source-files
2208 * via the refusal of "delete", not any of the "delete-FOO"
2209 * options. */
2210 if (refused_delete && am_sender) {
2211 create_refuse_error(refused_delete);
2212 return 0;
2213 }
2214 need_messages_from_generator = 1;
2215 }
2216
2217 if (munge_symlinks && !am_daemon) {
2218 STRUCT_STAT st;
2219 char prefix[SYMLINK_PREFIX_LEN]; /* NOT +1 ! */
2220 strlcpy(prefix, SYMLINK_PREFIX, sizeof prefix); /* trim the trailing slash */
2221 if (do_stat(prefix, &st) == 0 && S_ISDIR(st.st_mode)) {
2222 rprintf(FERROR, "Symlink munging is unsafe when a %s directory exists.\n",
2223 prefix);
2224 exit_cleanup(RERR_UNSUPPORTED);
2225 }
2226 }
2227
2228 if (sanitize_paths) {
2229 int i;
2230 for (i = argc; i-- > 0; )
2231 argv[i] = sanitize_path(NULL, argv[i], "", 0, SP_KEEP_DOT_DIRS);
2232 if (tmpdir)
2233 tmpdir = sanitize_path(NULL, tmpdir, NULL, 0, SP_DEFAULT);
2234 if (backup_dir)
2235 backup_dir = sanitize_path(NULL, backup_dir, NULL, 0, SP_DEFAULT);
2236 }
2237 if (daemon_filter_list.head && !am_sender) {
2238 filter_rule_list *elp = &daemon_filter_list;
2239 if (tmpdir) {
2240 char *dir;
2241 if (!*tmpdir)
2242 goto options_rejected;
2243 dir = tmpdir + (*tmpdir == '/' ? module_dirlen : 0);
2244 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2245 if (check_filter(elp, FLOG, dir, 1) < 0)
2246 goto options_rejected;
2247 }
2248 if (backup_dir) {
2249 char *dir;
2250 if (!*backup_dir)
2251 goto options_rejected;
2252 dir = backup_dir + (*backup_dir == '/' ? module_dirlen : 0);
2253 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2254 if (check_filter(elp, FLOG, dir, 1) < 0)
2255 goto options_rejected;
2256 }
2257 }
2258
2259 if (!backup_suffix)
2260 backup_suffix = backup_dir ? "" : BACKUP_SUFFIX;
2261 backup_suffix_len = strlen(backup_suffix);
2262 if (strchr(backup_suffix, '/') != NULL) {
2263 snprintf(err_buf, sizeof err_buf,
2264 "--suffix cannot contain slashes: %s\n",
2265 backup_suffix);
2266 return 0;
2267 }
2268 if (backup_dir) {
2269 size_t len;
2270 make_backups = 1; /* --backup-dir implies --backup */
2271 while (*backup_dir == '.' && backup_dir[1] == '/')
2272 backup_dir += 2;
2273 if (*backup_dir == '.' && backup_dir[1] == '\0')
2274 backup_dir++;
2275 len = strlcpy(backup_dir_buf, backup_dir, sizeof backup_dir_buf);
2276 if (len > sizeof backup_dir_buf - 128) {
2277 snprintf(err_buf, sizeof err_buf,
2278 "the --backup-dir path is WAY too long.\n");
2279 return 0;
2280 }
2281 backup_dir_len = (int)len;
2282 if (!backup_dir_len) {
2283 backup_dir_len = -1;
2284 backup_dir = NULL;
2285 } else if (backup_dir_buf[backup_dir_len - 1] != '/') {
2286 backup_dir_buf[backup_dir_len++] = '/';
2287 backup_dir_buf[backup_dir_len] = '\0';
2288 }
2289 backup_dir_remainder = sizeof backup_dir_buf - backup_dir_len;
2290 }
2291 if (backup_dir) {
2292 /* No need for a suffix or a protect rule. */
2293 } else if (!backup_suffix_len && (!am_server || !am_sender)) {
2294 snprintf(err_buf, sizeof err_buf,
2295 "--suffix cannot be empty %s\n", backup_dir_len < 0
2296 ? "when --backup-dir is the same as the dest dir"
2297 : "without a --backup-dir");
2298 return 0;
2299 } else if (make_backups && delete_mode && !delete_excluded && !am_server) {
2300 snprintf(backup_dir_buf, sizeof backup_dir_buf,
2301 "P *%s", backup_suffix);
2302 parse_filter_str(&filter_list, backup_dir_buf, rule_template(0), 0);
2303 }
2304
2305 if (make_backups && !backup_dir)
2306 omit_dir_times = -1; /* Implied, so avoid -O to sender. */
2307
2308 if (stdout_format) {
2309 if (am_server && log_format_has(stdout_format, 'I'))
2310 stdout_format_has_i = 2;
2311 else if (log_format_has(stdout_format, 'i'))
2312 stdout_format_has_i = itemize_changes | 1;
2313 if (!log_format_has(stdout_format, 'b')
2314 && !log_format_has(stdout_format, 'c')
2315 && !log_format_has(stdout_format, 'C'))
2316 log_before_transfer = !am_server;
2317 } else if (itemize_changes) {
2318 stdout_format = "%i %n%L";
2319 stdout_format_has_i = itemize_changes;
2320 log_before_transfer = !am_server;
2321 }
2322
2323 if (do_progress && !am_server) {
2324 if (!log_before_transfer && INFO_EQ(NAME, 0))
2325 parse_output_words(info_words, info_levels, "name", DEFAULT_PRIORITY);
2326 parse_output_words(info_words, info_levels, "flist2,progress", DEFAULT_PRIORITY);
2327 }
2328
2329 if (dry_run)
2330 do_xfers = 0;
2331
2332 set_io_timeout(io_timeout);
2333
2334 if (INFO_GTE(NAME, 1) && !stdout_format) {
2335 stdout_format = "%n%L";
2336 log_before_transfer = !am_server;
2337 }
2338 if (stdout_format_has_i || log_format_has(stdout_format, 'o'))
2339 stdout_format_has_o_or_i = 1;
2340
2341 if (logfile_name && !am_daemon) {
2342 if (!logfile_format) {
2343 logfile_format = "%i %n%L";
2344 logfile_format_has_i = logfile_format_has_o_or_i = 1;
2345 } else {
2346 if (log_format_has(logfile_format, 'i'))
2347 logfile_format_has_i = 1;
2348 if (logfile_format_has_i || log_format_has(logfile_format, 'o'))
2349 logfile_format_has_o_or_i = 1;
2350 }
2351 log_init(0);
2352 } else if (!am_daemon)
2353 logfile_format = NULL;
2354
2355 if (daemon_bwlimit && (!bwlimit || bwlimit > daemon_bwlimit))
2356 bwlimit = daemon_bwlimit;
2357 if (bwlimit) {
2358 bwlimit_writemax = (size_t)bwlimit * 128;
2359 if (bwlimit_writemax < 512)
2360 bwlimit_writemax = 512;
2361 }
2362
2363 if (append_mode) {
2364 if (whole_file > 0) {
2365 snprintf(err_buf, sizeof err_buf,
2366 "--append cannot be used with --whole-file\n");
2367 return 0;
2368 }
2369 if (refused_inplace) {
2370 create_refuse_error(refused_inplace);
2371 return 0;
2372 }
2373 inplace = 1;
2374 }
2375
2376 if (write_devices) {
2377 if (refused_inplace) {
2378 create_refuse_error(refused_inplace);
2379 return 0;
2380 }
2381 inplace = 1;
2382 }
2383
2384 if (delay_updates && !partial_dir)
2385 partial_dir = tmp_partialdir;
2386
2387 if (inplace) {
2388 #ifdef HAVE_FTRUNCATE
2389 if (partial_dir) {
2390 snprintf(err_buf, sizeof err_buf,
2391 "--%s cannot be used with --%s\n",
2392 append_mode ? "append" : "inplace",
2393 delay_updates ? "delay-updates" : "partial-dir");
2394 return 0;
2395 }
2396 /* --inplace implies --partial for refusal purposes, but we
2397 * clear the keep_partial flag for internal logic purposes. */
2398 if (refused_partial) {
2399 create_refuse_error(refused_partial);
2400 return 0;
2401 }
2402 keep_partial = 0;
2403 #else
2404 snprintf(err_buf, sizeof err_buf,
2405 "--%s is not supported on this %s\n",
2406 append_mode ? "append" : "inplace",
2407 am_server ? "server" : "client");
2408 return 0;
2409 #endif
2410 } else {
2411 if (keep_partial && !partial_dir && !am_server) {
2412 if ((arg = getenv("RSYNC_PARTIAL_DIR")) != NULL && *arg)
2413 partial_dir = strdup(arg);
2414 }
2415 if (partial_dir) {
2416 if (*partial_dir)
2417 clean_fname(partial_dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2418 if (!*partial_dir || strcmp(partial_dir, ".") == 0)
2419 partial_dir = NULL;
2420 if (!partial_dir && refused_partial) {
2421 create_refuse_error(refused_partial);
2422 return 0;
2423 }
2424 keep_partial = 1;
2425 }
2426 }
2427
2428 if (files_from) {
2429 char *h, *p;
2430 int q;
2431 if (argc > 2 || (!am_daemon && !am_server && argc == 1)) {
2432 usage(FERROR);
2433 exit_cleanup(RERR_SYNTAX);
2434 }
2435 if (strcmp(files_from, "-") == 0) {
2436 filesfrom_fd = 0;
2437 if (am_server)
2438 filesfrom_host = ""; /* reading from socket */
2439 } else if ((p = check_for_hostspec(files_from, &h, &q)) != 0) {
2440 if (am_server) {
2441 snprintf(err_buf, sizeof err_buf,
2442 "The --files-from sent to the server cannot specify a host.\n");
2443 return 0;
2444 }
2445 files_from = p;
2446 filesfrom_host = h;
2447 if (strcmp(files_from, "-") == 0) {
2448 snprintf(err_buf, sizeof err_buf,
2449 "Invalid --files-from remote filename\n");
2450 return 0;
2451 }
2452 } else {
2453 if (sanitize_paths)
2454 files_from = sanitize_path(NULL, files_from, NULL, 0, SP_DEFAULT);
2455 if (daemon_filter_list.head) {
2456 char *dir;
2457 if (!*files_from)
2458 goto options_rejected;
2459 dir = files_from + (*files_from == '/' ? module_dirlen : 0);
2460 clean_fname(dir, CFN_COLLAPSE_DOT_DOT_DIRS);
2461 if (check_filter(&daemon_filter_list, FLOG, dir, 0) < 0)
2462 goto options_rejected;
2463 }
2464 filesfrom_fd = open(files_from, O_RDONLY|O_BINARY);
2465 if (filesfrom_fd < 0) {
2466 snprintf(err_buf, sizeof err_buf,
2467 "failed to open files-from file %s: %s\n",
2468 files_from, strerror(errno));
2469 return 0;
2470 }
2471 }
2472 }
2473
2474 if (trust_sender || am_server || read_batch)
2475 trust_sender_args = trust_sender_filter = 1;
2476 else if (old_style_args || filesfrom_host != NULL)
2477 trust_sender_args = 1;
2478
2479 am_starting_up = 0;
2480
2481 return 1;
2482
2483 options_rejected:
2484 snprintf(err_buf, sizeof err_buf,
2485 "Your options have been rejected by the server.\n");
2486 return 0;
2487 }
2488
2489
2490 static char SPLIT_ARG_WHEN_OLD[1];
2491
2492 /**
2493 * Do backslash quoting of any weird chars in "arg", append the resulting
2494 * string to the end of the "opt" (which gets a "=" appended if it is not
2495 * an empty or NULL string), and return the (perhaps malloced) result.
2496 * If opt is NULL, arg is considered a filename arg that allows wildcards.
2497 * If it is "" or any other value, it is considered an option.
2498 **/
2499 char *safe_arg(const char *opt, const char *arg)
2500 {
2501 #define SHELL_CHARS "!#$&;|<>(){}\"' \t\\"
2502 #define WILD_CHARS "*?[]" /* We don't allow remote brace expansion */
2503 BOOL is_filename_arg = !opt;
2504 char *escapes = is_filename_arg ? SHELL_CHARS : WILD_CHARS SHELL_CHARS;
2505 BOOL escape_leading_dash = is_filename_arg && *arg == '-';
2506 BOOL escape_leading_tilde = 0;
2507 int len1 = opt && *opt ? strlen(opt) + 1 : 0;
2508 int len2 = strlen(arg);
2509 int extras = escape_leading_dash ? 2 : 0;
2510 char *ret;
2511 if (!protect_args && old_style_args < 2 && (!old_style_args || (!is_filename_arg && opt != SPLIT_ARG_WHEN_OLD))) {
2512 const char *f;
2513 if (!trust_sender_args && *arg == '~'
2514 && ((relative_paths && !strstr(arg, "/./"))
2515 || !strchr(arg, '/'))) {
2516 extras++;
2517 escape_leading_tilde = 1;
2518 }
2519 for (f = arg; *f; f++) {
2520 if (strchr(escapes, *f))
2521 extras++;
2522 }
2523 }
2524 if (!len1 && !extras)
2525 return (char*)arg;
2526 ret = new_array(char, len1 + len2 + extras + 1);
2527 if (len1) {
2528 memcpy(ret, opt, len1-1);
2529 ret[len1-1] = '=';
2530 }
2531 if (escape_leading_dash) {
2532 ret[len1++] = '.';
2533 ret[len1++] = '/';
2534 extras -= 2;
2535 }
2536 if (!extras)
2537 memcpy(ret + len1, arg, len2);
2538 else {
2539 const char *f = arg;
2540 char *t = ret + len1;
2541 if (escape_leading_tilde)
2542 *t++ = '\\';
2543 while (*f) {
2544 if (*f == '\\') {
2545 if (!is_filename_arg || !strchr(WILD_CHARS, f[1]))
2546 *t++ = '\\';
2547 } else if (strchr(escapes, *f))
2548 *t++ = '\\';
2549 *t++ = *f++;
2550 }
2551 }
2552 ret[len1+len2+extras] = '\0';
2553 return ret;
2554 }
2555
2556
2557 /**
2558 * Construct a filtered list of options to pass through from the
2559 * client to the server.
2560 *
2561 * This involves setting options that will tell the server how to
2562 * behave, and also filtering out options that are processed only
2563 * locally.
2564 **/
2565 void server_options(char **args, int *argc_p)
2566 {
2567 static char argstr[64];
2568 int ac = *argc_p;
2569 uchar where;
2570 char *arg;
2571 int i, x;
2572
2573 /* This should always remain first on the server's command-line. */
2574 args[ac++] = "--server";
2575
2576 if (!am_sender)
2577 args[ac++] = "--sender";
2578
2579 x = 1;
2580 argstr[0] = '-';
2581
2582 if (protect_args)
2583 argstr[x++] = 's';
2584
2585 for (i = 0; i < verbose; i++)
2586 argstr[x++] = 'v';
2587
2588 if (quiet && msgs2stderr)
2589 argstr[x++] = 'q';
2590 if (make_backups)
2591 argstr[x++] = 'b';
2592 if (update_only)
2593 argstr[x++] = 'u';
2594 if (!do_xfers) /* Note: NOT "dry_run"! */
2595 argstr[x++] = 'n';
2596 if (preserve_links)
2597 argstr[x++] = 'l';
2598 if ((xfer_dirs >= 2 && xfer_dirs < 4)
2599 || (xfer_dirs && !recurse && (list_only || (delete_mode && am_sender))))
2600 argstr[x++] = 'd';
2601 if (am_sender) {
2602 if (keep_dirlinks)
2603 argstr[x++] = 'K';
2604 if (prune_empty_dirs)
2605 argstr[x++] = 'm';
2606 if (omit_dir_times > 0)
2607 argstr[x++] = 'O';
2608 if (omit_link_times)
2609 argstr[x++] = 'J';
2610 if (fuzzy_basis) {
2611 argstr[x++] = 'y';
2612 if (fuzzy_basis > 1)
2613 argstr[x++] = 'y';
2614 }
2615 } else {
2616 if (copy_links)
2617 argstr[x++] = 'L';
2618 if (copy_dirlinks)
2619 argstr[x++] = 'k';
2620 }
2621
2622 if (whole_file > 0)
2623 argstr[x++] = 'W';
2624 /* We don't need to send --no-whole-file, because it's the
2625 * default for remote transfers, and in any case old versions
2626 * of rsync will not understand it. */
2627
2628 if (preserve_hard_links) {
2629 argstr[x++] = 'H';
2630 if (preserve_hard_links > 1)
2631 argstr[x++] = 'H';
2632 }
2633 if (preserve_uid)
2634 argstr[x++] = 'o';
2635 if (preserve_gid)
2636 argstr[x++] = 'g';
2637 if (preserve_devices) /* ignore preserve_specials here */
2638 argstr[x++] = 'D';
2639 if (preserve_mtimes)
2640 argstr[x++] = 't';
2641 if (preserve_atimes) {
2642 argstr[x++] = 'U';
2643 if (preserve_atimes > 1)
2644 argstr[x++] = 'U';
2645 }
2646 #ifdef SUPPORT_CRTIMES
2647 if (preserve_crtimes)
2648 argstr[x++] = 'N';
2649 #endif
2650 if (preserve_perms)
2651 argstr[x++] = 'p';
2652 else if (preserve_executability && am_sender)
2653 argstr[x++] = 'E';
2654 #ifdef SUPPORT_ACLS
2655 if (preserve_acls)
2656 argstr[x++] = 'A';
2657 #endif
2658 #ifdef SUPPORT_XATTRS
2659 if (preserve_xattrs) {
2660 argstr[x++] = 'X';
2661 if (preserve_xattrs > 1)
2662 argstr[x++] = 'X';
2663 }
2664 #endif
2665 if (recurse)
2666 argstr[x++] = 'r';
2667 if (always_checksum)
2668 argstr[x++] = 'c';
2669 if (cvs_exclude)
2670 argstr[x++] = 'C';
2671 if (ignore_times)
2672 argstr[x++] = 'I';
2673 if (relative_paths)
2674 argstr[x++] = 'R';
2675 if (one_file_system) {
2676 argstr[x++] = 'x';
2677 if (one_file_system > 1)
2678 argstr[x++] = 'x';
2679 }
2680 if (sparse_files)
2681 argstr[x++] = 'S';
2682 if (do_compression == CPRES_ZLIB)
2683 argstr[x++] = 'z';
2684
2685 set_allow_inc_recurse();
2686
2687 /* This '\0'-terminates argstr and makes sure it didn't overflow. */
2688 x += maybe_add_e_option(argstr + x, (int)sizeof argstr - x);
2689
2690 if (x > 1)
2691 args[ac++] = argstr;
2692
2693 #ifdef ICONV_OPTION
2694 if (iconv_opt) {
2695 char *set = strchr(iconv_opt, ',');
2696 if (set)
2697 set++;
2698 else
2699 set = iconv_opt;
2700 args[ac++] = safe_arg("--iconv", set);
2701 }
2702 #endif
2703
2704 if (protect_args && !local_server) /* unprotected args stop here */
2705 args[ac++] = NULL;
2706
2707 if (list_only > 1)
2708 args[ac++] = "--list-only";
2709
2710 /* This makes sure that the remote rsync can handle deleting with -d
2711 * sans -r because the --no-r option was added at the same time. */
2712 if (xfer_dirs && !recurse && delete_mode && am_sender)
2713 args[ac++] = "--no-r";
2714
2715 if (do_compression && do_compression_level != CLVL_NOT_SPECIFIED) {
2716 if (asprintf(&arg, "--compress-level=%d", do_compression_level) < 0)
2717 goto oom;
2718 args[ac++] = arg;
2719 }
2720
2721 if (preserve_devices) {
2722 /* Note: sending "--devices" would not be backward-compatible. */
2723 if (!preserve_specials)
2724 args[ac++] = "--no-specials"; /* -D is already set. */
2725 } else if (preserve_specials)
2726 args[ac++] = "--specials";
2727
2728 /* The server side doesn't use our log-format, but in certain
2729 * circumstances they need to know a little about the option. */
2730 if (stdout_format && am_sender) {
2731 /* Use --log-format, not --out-format, for compatibility. */
2732 if (stdout_format_has_i > 1)
2733 args[ac++] = "--log-format=%i%I";
2734 else if (stdout_format_has_i)
2735 args[ac++] = "--log-format=%i";
2736 else if (stdout_format_has_o_or_i)
2737 args[ac++] = "--log-format=%o";
2738 else if (!verbose)
2739 args[ac++] = "--log-format=X";
2740 }
2741
2742 if (msgs2stderr == 1)
2743 args[ac++] = "--msgs2stderr";
2744 else if (msgs2stderr == 0)
2745 args[ac++] = "--no-msgs2stderr";
2746
2747 if (block_size) {
2748 if (asprintf(&arg, "-B%u", (int)block_size) < 0)
2749 goto oom;
2750 args[ac++] = arg;
2751 }
2752
2753 if (io_timeout) {
2754 if (asprintf(&arg, "--timeout=%d", io_timeout) < 0)
2755 goto oom;
2756 args[ac++] = arg;
2757 }
2758
2759 if (bwlimit) {
2760 if (asprintf(&arg, "--bwlimit=%d", bwlimit) < 0)
2761 goto oom;
2762 args[ac++] = arg;
2763 }
2764
2765 if (backup_dir) {
2766 /* This split idiom allows for ~/path expansion via the shell. */
2767 args[ac++] = "--backup-dir";
2768 args[ac++] = safe_arg("", backup_dir);
2769 }
2770
2771 /* Only send --suffix if it specifies a non-default value. */
2772 if (strcmp(backup_suffix, backup_dir ? "" : BACKUP_SUFFIX) != 0)
2773 args[ac++] = safe_arg("--suffix", backup_suffix);
2774
2775 if (checksum_choice)
2776 args[ac++] = safe_arg("--checksum-choice", checksum_choice);
2777
2778 if (do_compression == CPRES_ZLIBX)
2779 args[ac++] = "--new-compress";
2780 else if (compress_choice && do_compression == CPRES_ZLIB)
2781 args[ac++] = "--old-compress";
2782 else if (compress_choice)
2783 args[ac++] = safe_arg("--compress-choice", compress_choice);
2784
2785 if (am_sender) {
2786 if (max_delete > 0) {
2787 if (asprintf(&arg, "--max-delete=%d", max_delete) < 0)
2788 goto oom;
2789 args[ac++] = arg;
2790 } else if (max_delete == 0)
2791 args[ac++] = "--max-delete=-1";
2792 if (min_size >= 0)
2793 args[ac++] = safe_arg("--min-size", min_size_arg);
2794 if (max_size >= 0)
2795 args[ac++] = safe_arg("--max-size", max_size_arg);
2796 if (delete_before)
2797 args[ac++] = "--delete-before";
2798 else if (delete_during == 2)
2799 args[ac++] = "--delete-delay";
2800 else if (delete_during)
2801 args[ac++] = "--delete-during";
2802 else if (delete_after)
2803 args[ac++] = "--delete-after";
2804 else if (delete_mode && !delete_excluded)
2805 args[ac++] = "--delete";
2806 if (delete_excluded)
2807 args[ac++] = "--delete-excluded";
2808 if (force_delete)
2809 args[ac++] = "--force";
2810 if (write_batch < 0)
2811 args[ac++] = "--only-write-batch=X";
2812 if (am_root > 1)
2813 args[ac++] = "--super";
2814 if (size_only)
2815 args[ac++] = "--size-only";
2816 if (do_stats)
2817 args[ac++] = "--stats";
2818 } else {
2819 if (skip_compress)
2820 args[ac++] = safe_arg("--skip-compress", skip_compress);
2821 }
2822
2823 if (max_alloc_arg && max_alloc != DEFAULT_MAX_ALLOC)
2824 args[ac++] = safe_arg("--max-alloc", max_alloc_arg);
2825
2826 /* --delete-missing-args needs the cooperation of both sides, but
2827 * the sender can handle --ignore-missing-args by itself. */
2828 if (missing_args == 2)
2829 args[ac++] = "--delete-missing-args";
2830 else if (missing_args == 1 && !am_sender)
2831 args[ac++] = "--ignore-missing-args";
2832
2833 if (modify_window_set && am_sender) {
2834 char *fmt = modify_window < 0 ? "-@%d" : "--modify-window=%d";
2835 if (asprintf(&arg, fmt, modify_window) < 0)
2836 goto oom;
2837 args[ac++] = arg;
2838 }
2839
2840 if (checksum_seed) {
2841 if (asprintf(&arg, "--checksum-seed=%d", checksum_seed) < 0)
2842 goto oom;
2843 args[ac++] = arg;
2844 }
2845
2846 if (partial_dir && am_sender) {
2847 if (partial_dir != tmp_partialdir) {
2848 args[ac++] = "--partial-dir";
2849 args[ac++] = safe_arg("", partial_dir);
2850 }
2851 if (delay_updates)
2852 args[ac++] = "--delay-updates";
2853 } else if (keep_partial && am_sender)
2854 args[ac++] = "--partial";
2855
2856 if (ignore_errors)
2857 args[ac++] = "--ignore-errors";
2858
2859 if (copy_unsafe_links)
2860 args[ac++] = "--copy-unsafe-links";
2861
2862 if (safe_symlinks)
2863 args[ac++] = "--safe-links";
2864
2865 if (numeric_ids)
2866 args[ac++] = "--numeric-ids";
2867
2868 if (use_qsort)
2869 args[ac++] = "--use-qsort";
2870
2871 if (am_sender) {
2872 if (usermap)
2873 args[ac++] = safe_arg("--usermap", usermap);
2874
2875 if (groupmap)
2876 args[ac++] = safe_arg("--groupmap", groupmap);
2877
2878 if (ignore_existing)
2879 args[ac++] = "--ignore-existing";
2880
2881 /* Backward compatibility: send --existing, not --ignore-non-existing. */
2882 if (ignore_non_existing)
2883 args[ac++] = "--existing";
2884
2885 if (tmpdir) {
2886 args[ac++] = "--temp-dir";
2887 args[ac++] = safe_arg("", tmpdir);
2888 }
2889
2890 if (do_fsync)
2891 args[ac++] = "--fsync";
2892
2893 if (basis_dir[0]) {
2894 /* the server only needs this option if it is not the sender,
2895 * and it may be an older version that doesn't know this
2896 * option, so don't send it if client is the sender.
2897 */
2898 for (i = 0; i < basis_dir_cnt; i++) {
2899 args[ac++] = alt_dest_opt(0);
2900 args[ac++] = safe_arg("", basis_dir[i]);
2901 }
2902 }
2903 }
2904
2905 /* What flags do we need to send to the other side? */
2906 where = (am_server ? W_CLI : W_SRV) | (am_sender ? W_REC : W_SND);
2907 arg = make_output_option(info_words, info_levels, where);
2908 if (arg)
2909 args[ac++] = arg;
2910
2911 if (append_mode) {
2912 if (append_mode > 1)
2913 args[ac++] = "--append";
2914 args[ac++] = "--append";
2915 } else if (inplace) {
2916 args[ac++] = "--inplace";
2917 /* Work around a bug in older rsync versions (on the remote side) for --inplace --sparse */
2918 if (sparse_files && !whole_file && am_sender)
2919 args[ac++] = "--no-W";
2920 }
2921
2922 if (files_from && (!am_sender || filesfrom_host)) {
2923 if (filesfrom_host) {
2924 args[ac++] = "--files-from";
2925 args[ac++] = safe_arg("", files_from);
2926 if (eol_nulls)
2927 args[ac++] = "--from0";
2928 } else {
2929 args[ac++] = "--files-from=-";
2930 args[ac++] = "--from0";
2931 }
2932 if (!relative_paths)
2933 args[ac++] = "--no-relative";
2934 }
2935 /* It's OK that this checks the upper-bound of the protocol_version. */
2936 if (relative_paths && !implied_dirs && (!am_sender || protocol_version >= 30))
2937 args[ac++] = "--no-implied-dirs";
2938
2939 if (write_devices && am_sender)
2940 args[ac++] = "--write-devices";
2941
2942 if (remove_source_files == 1)
2943 args[ac++] = "--remove-source-files";
2944 else if (remove_source_files)
2945 args[ac++] = "--remove-sent-files";
2946
2947 if (copy_devices && !am_sender)
2948 args[ac++] = "--copy-devices";
2949
2950 if (preallocate_files && am_sender)
2951 args[ac++] = "--preallocate";
2952
2953 if (open_noatime && preserve_atimes <= 1)
2954 args[ac++] = "--open-noatime";
2955
2956 if (mkpath_dest_arg && am_sender)
2957 args[ac++] = "--mkpath";
2958
2959 if (ac > MAX_SERVER_ARGS) { /* Not possible... */
2960 rprintf(FERROR, "argc overflow in server_options().\n");
2961 exit_cleanup(RERR_MALLOC);
2962 }
2963
2964 if (remote_option_cnt) {
2965 int j;
2966 if (ac + remote_option_cnt > MAX_SERVER_ARGS) {
2967 rprintf(FERROR, "too many remote options specified.\n");
2968 exit_cleanup(RERR_SYNTAX);
2969 }
2970 for (j = 1; j <= remote_option_cnt; j++)
2971 args[ac++] = safe_arg(SPLIT_ARG_WHEN_OLD, remote_options[j]);
2972 }
2973
2974 *argc_p = ac;
2975 return;
2976
2977 oom:
2978 out_of_memory("server_options");
2979 }
2980
2981 int maybe_add_e_option(char *buf, int buf_len)
2982 {
2983 int x = 0;
2984
2985 /* We don't really know the actual protocol_version at this point,
2986 * but checking the pre-negotiated value allows the user to use a
2987 * --protocol=29 override to avoid the use of this -eFLAGS opt. */
2988 if (protocol_version >= 30 && buf_len > 0) {
2989 /* We make use of the -e option to let the server know about
2990 * any pre-release protocol version && some behavior flags. */
2991 buf[x++] = 'e';
2992
2993 #if SUBPROTOCOL_VERSION != 0
2994 if (protocol_version == PROTOCOL_VERSION)
2995 x += snprintf(buf + x, buf_len - x, "%d.%d", PROTOCOL_VERSION, SUBPROTOCOL_VERSION);
2996 else
2997 #endif
2998 buf[x++] = '.';
2999 if (allow_inc_recurse)
3000 buf[x++] = 'i';
3001 #ifdef CAN_SET_SYMLINK_TIMES
3002 buf[x++] = 'L'; /* symlink time-setting support */
3003 #endif
3004 #ifdef ICONV_OPTION
3005 buf[x++] = 's'; /* symlink iconv translation support */
3006 #endif
3007 buf[x++] = 'f'; /* flist I/O-error safety support */
3008 buf[x++] = 'x'; /* xattr hardlink optimization not desired */
3009 buf[x++] = 'C'; /* support checksum seed order fix */
3010 buf[x++] = 'I'; /* support inplace_partial behavior */
3011 buf[x++] = 'v'; /* use varint for flist & compat flags; negotiate checksum */
3012 buf[x++] = 'u'; /* include name of uid 0 & gid 0 in the id map */
3013
3014 /* NOTE: Avoid using 'V' -- it was represented with the high bit of a write_byte() that became a write_varint(). */
3015 }
3016
3017 if (x >= buf_len) { /* Not possible... */
3018 rprintf(FERROR, "overflow in add_e_flags().\n");
3019 exit_cleanup(RERR_MALLOC);
3020 }
3021
3022 buf[x] = '\0';
3023
3024 return x;
3025 }
3026
3027 /* If str points to a valid hostspec, return allocated memory containing the
3028 * [USER@]HOST part of the string, and set the path_start_ptr to the part of
3029 * the string after the host part. Otherwise, return NULL. If port_ptr is
3030 * non-NULL, we must be parsing an rsync:// URL hostname, and we will set
3031 * *port_ptr if a port number is found. Note that IPv6 IPs will have their
3032 * (required for parsing) [ and ] chars elided from the returned string. */
3033 static char *parse_hostspec(char *str, char **path_start_ptr, int *port_ptr)
3034 {
3035 char *s, *host_start = str;
3036 int hostlen = 0, userlen = 0;
3037 char *ret;
3038
3039 for (s = str; ; s++) {
3040 if (!*s) {
3041 /* It is only OK if we run out of string with rsync:// */
3042 if (!port_ptr)
3043 return NULL;
3044 if (!hostlen)
3045 hostlen = s - host_start;
3046 break;
3047 }
3048 if (*s == ':' || *s == '/') {
3049 if (!hostlen)
3050 hostlen = s - host_start;
3051 if (*s++ == '/') {
3052 if (!port_ptr)
3053 return NULL;
3054 } else if (port_ptr) {
3055 *port_ptr = atoi(s);
3056 while (isDigit(s)) s++;
3057 if (*s && *s++ != '/')
3058 return NULL;
3059 }
3060 break;
3061 }
3062 if (*s == '@') {
3063 userlen = s - str + 1;
3064 host_start = s + 1;
3065 } else if (*s == '[') {
3066 if (s != host_start++)
3067 return NULL;
3068 while (*s && *s != ']' && *s != '/') s++; /*SHARED ITERATOR*/
3069 hostlen = s - host_start;
3070 if (*s != ']' || (s[1] && s[1] != '/' && s[1] != ':') || !hostlen)
3071 return NULL;
3072 }
3073 }
3074
3075 *path_start_ptr = s;
3076 ret = new_array(char, userlen + hostlen + 1);
3077 if (userlen)
3078 strlcpy(ret, str, userlen + 1);
3079 strlcpy(ret + userlen, host_start, hostlen + 1);
3080 return ret;
3081 }
3082
3083 /* Look for a HOST specification of the form "HOST:PATH", "HOST::PATH", or
3084 * "rsync://HOST:PORT/PATH". If found, *host_ptr will be set to some allocated
3085 * memory with the HOST. If a daemon-accessing spec was specified, the value
3086 * of *port_ptr will contain a non-0 port number, otherwise it will be set to
3087 * 0. The return value is a pointer to the PATH. Note that the HOST spec can
3088 * be an IPv6 literal address enclosed in '[' and ']' (such as "[::1]" or
3089 * "[::ffff:127.0.0.1]") which is returned without the '[' and ']'. */
3090 char *check_for_hostspec(char *s, char **host_ptr, int *port_ptr)
3091 {
3092 char *path;
3093
3094 if (port_ptr && strncasecmp(URL_PREFIX, s, strlen(URL_PREFIX)) == 0) {
3095 *host_ptr = parse_hostspec(s + strlen(URL_PREFIX), &path, port_ptr);
3096 if (*host_ptr) {
3097 if (!*port_ptr)
3098 *port_ptr = -1; /* -1 indicates they want the default */
3099 return path;
3100 }
3101 }
3102
3103 *host_ptr = parse_hostspec(s, &path, NULL);
3104 if (!*host_ptr)
3105 return NULL;
3106
3107 if (*path == ':') {
3108 if (port_ptr && !*port_ptr)
3109 *port_ptr = -1;
3110 return path + 1;
3111 }
3112 if (port_ptr)
3113 *port_ptr = 0;
3114
3115 return path;
3116 }
rsync: a fast, versatile, remote (and local) file-copying tool